Comparison of kernels
Encyclopedia
A kernel is the core component of every computer operating system
. While kernels are highly technical in nature, and may be hidden from the user under many layers of software and applications, they do have distinguishing or characteristic features, such as computer architecture
, design goals, as well as the more practical features that they provide. A direct comparison of operating system kernels can highlight these design choices, and provide insight into different niches and the evolving technology of kernels.
kernels. Please see the individual products' articles for further information.
Even though there is a large number and variety of available Linux distribution
s, all of these kernels are grouped under a single entry in these tables, due to differences being of the patch level. See comparison of Linux distributions
for a detailed comparison. Linux distributions that have highly modified kernels, for example Real-time computing
kernels, should be listed separately. There are also a wide variety of minor BSD operating systems, many of which can be found at Comparison of BSD operating systems
.
The tables specifically do not include subjective viewpoints on the merits of each kernel or operating system. For this kind of information, please see operating system advocacy
.
s:
Supported Bluetooth protocols
Operating system
An operating system is a set of programs that manage computer hardware resources and provide common services for application software. The operating system is the most important type of system software in a computer system...
. While kernels are highly technical in nature, and may be hidden from the user under many layers of software and applications, they do have distinguishing or characteristic features, such as computer architecture
Computer architecture
In computer science and engineering, computer architecture is the practical art of selecting and interconnecting hardware components to create computers that meet functional, performance and cost goals and the formal modelling of those systems....
, design goals, as well as the more practical features that they provide. A direct comparison of operating system kernels can highlight these design choices, and provide insight into different niches and the evolving technology of kernels.
Comparison criterion
The following tables compare general and technical information for a number of widely used and currently available operating systemOperating system
An operating system is a set of programs that manage computer hardware resources and provide common services for application software. The operating system is the most important type of system software in a computer system...
kernels. Please see the individual products' articles for further information.
Even though there is a large number and variety of available Linux distribution
Linux distribution
A Linux distribution is a member of the family of Unix-like operating systems built on top of the Linux kernel. Such distributions are operating systems including a large collection of software applications such as word processors, spreadsheets, media players, and database applications...
s, all of these kernels are grouped under a single entry in these tables, due to differences being of the patch level. See comparison of Linux distributions
Comparison of Linux distributions
Technical variations of Linux distributions include support for different hardware devices and systems or software package configurations. Organizational differences may be motivated by historical reasons...
for a detailed comparison. Linux distributions that have highly modified kernels, for example Real-time computing
Real-time computing
In computer science, real-time computing , or reactive computing, is the study of hardware and software systems that are subject to a "real-time constraint"— e.g. operational deadlines from event to system response. Real-time programs must guarantee response within strict time constraints...
kernels, should be listed separately. There are also a wide variety of minor BSD operating systems, many of which can be found at Comparison of BSD operating systems
Comparison of BSD operating systems
There are a number of Unix-like operating systems based on or descended from the Berkeley Software Distribution series of Unix variants. The three most notable descendants in current use are FreeBSD, OpenBSD, and NetBSD, which are all derived from 386BSD and 4.4BSD-Lite, by various routes...
.
The tables specifically do not include subjective viewpoints on the merits of each kernel or operating system. For this kind of information, please see operating system advocacy
Operating system advocacy
Operating system advocacy is the practice of attempting to increase the awareness and improve the perception of a computer operating system. The motivation behind this may be to increase the number of users of a system, to assert the superiority of one choice over another or out of brand loyalty,...
.
Feature overview
The major contemporary general-purpose kernels are shown in comparison. Only an overview of the technical features is detailed.| Kernel name | Used in | Creator | Executable format (also see section below) |
Type | Integrated firewall | SMP Symmetric multiprocessing In computing, symmetric multiprocessing involves a multiprocessor computer hardware architecture where two or more identical processors are connected to a single shared main memory and are controlled by a single OS instance. Most common multiprocessor systems today use an SMP architecture... support |
Multiple architecture Computer architecture In computer science and engineering, computer architecture is the practical art of selecting and interconnecting hardware components to create computers that meet functional, performance and cost goals and the formal modelling of those systems.... support (also see section below). |
Multitasking Computer multitasking In computing, multitasking is a method where multiple tasks, also known as processes, share common processing resources such as a CPU. In the case of a computer with a single CPU, only one task is said to be running at any point in time, meaning that the CPU is actively executing instructions for... |
Virtualization Operating system-level virtualization Operating system-level virtualization is a server virtualization method where the kernel of an operating system allows for multiple isolated user-space instances, instead of just one. Such instances may look and feel like a real server, from the point of view of its owner... |
Security Security Security is the degree of protection against danger, damage, loss, and crime. Security as a form of protection are structures and processes that provide or improve security as a condition. The Institute for Security and Open Methodologies in the OSSTMM 3 defines security as "a form of protection... |
Profiling/Debugging Debugging Debugging is a methodical process of finding and reducing the number of bugs, or defects, in a computer program or a piece of electronic hardware, thus making it behave as expected. Debugging tends to be harder when various subsystems are tightly coupled, as changes in one may cause bugs to emerge... |
Soft real-time Real-time computing In computer science, real-time computing , or reactive computing, is the study of hardware and software systems that are subject to a "real-time constraint"— e.g. operational deadlines from event to system response. Real-time programs must guarantee response within strict time constraints... support |
Hard real-time Real-time computing In computer science, real-time computing , or reactive computing, is the study of hardware and software systems that are subject to a "real-time constraint"— e.g. operational deadlines from event to system response. Real-time programs must guarantee response within strict time constraints... support |
Can keep RTC Real-time clock A real-time clock is a computer clock that keeps track of the current time. Although the term often refers to the devices in personal computers, servers and embedded systems, RTCs are present in almost any electronic device which needs to keep accurate time.-Terminology:The term is used to avoid... in UT Universal Time Universal Time is a time scale based on the rotation of the Earth. It is a modern continuation of Greenwich Mean Time , i.e., the mean solar time on the Prime Meridian at Greenwich, and GMT is sometimes used loosely as a synonym for UTC... |
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| Agnix http://agnix.sourceforge.net/ | ||||||||||||||
| Amiga Exec | AmigaOS AmigaOS AmigaOS is the default native operating system of the Amiga personal computer. It was developed first by Commodore International, and initially introduced in 1985 with the Amiga 1000... |
Commodore International Commodore International Commodore is the commonly used name for Commodore Business Machines , the U.S.-based home computer manufacturer and electronics manufacturer headquartered in West Chester, Pennsylvania, which also housed Commodore's corporate parent company, Commodore International Limited... |
HUNK Amiga Hunk Hunk is the executable file format of tools and programs of the Amiga Operating System based on Motorola 68000 CPU and other processors of the same family.... |
Exokernel Exokernel Exokernel is an operating system kernel developed by the MIT Parallel and Distributed Operating Systems group, and also a class of similar operating systems.... (atypical) |
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| Amiga Exec SG (2nd Generation) | AmigaOS 4 AmigaOS 4 AmigaOS 4, , is a line of Amiga operating systems which runs on PowerPC microprocessors. It is mainly based on AmigaOS 3.1 source code, and partially on version 3.9 developed by Haage & Partner... |
Hyperion Entertainment Hyperion Entertainment Hyperion Entertainment CVBA is a Belgian software company which in its early years focused in porting Windows games to Amiga, Linux and Macintosh. Later on, they were contracted by Amiga Incorporated to develop AmigaOS 4 and retired from the gaming business... |
ELF Executable and Linkable Format In computing, the Executable and Linkable Format is a common standard file format for executables, object code, shared libraries, and core dumps. First published in the System V Application Binary Interface specification, and later in the Tool Interface Standard, it was quickly accepted among... /HUNK Amiga Hunk Hunk is the executable file format of tools and programs of the Amiga Operating System based on Motorola 68000 CPU and other processors of the same family.... |
Exokernel Exokernel Exokernel is an operating system kernel developed by the MIT Parallel and Distributed Operating Systems group, and also a class of similar operating systems.... (atypical) |
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| DragonFly BSD kernel http://www.dragonflybsd.org/ | DragonFly BSD DragonFly BSD DragonFly BSD is a free Unix-like operating system created as a fork of FreeBSD 4.8. Matthew Dillon, an Amiga developer in the late 1980s and early 1990s and a FreeBSD developer between 1994 and 2003, began work on DragonFly BSD in June 2003 and announced it on the FreeBSD mailing lists on July... |
Matt Dillon Matt Dillon (computer scientist) Matthew Dillon is a computer scientist living in Berkeley, California. He is best known for his contributions to FreeBSD and for starting the DragonFly BSD project.... |
ELF Executable and Linkable Format In computing, the Executable and Linkable Format is a common standard file format for executables, object code, shared libraries, and core dumps. First published in the System V Application Binary Interface specification, and later in the Tool Interface Standard, it was quickly accepted among... , others - platform dependent |
hybrid Hybrid kernel A hybrid kernel is a kernel architecture based on combining aspects of microkernel and monolithic kernel architectures used in computer operating systems. The category is controversial due to the similarity to monolithic kernel; the term has been dismissed by Linus Torvalds as simple marketing... |
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| FreeBSD kernel FreeBSD FreeBSD is a free Unix-like operating system descended from AT&T UNIX via BSD UNIX. Although for legal reasons FreeBSD cannot be called “UNIX”, as the direct descendant of BSD UNIX , FreeBSD’s internals and system APIs are UNIX-compliant... |
FreeBSD FreeBSD FreeBSD is a free Unix-like operating system descended from AT&T UNIX via BSD UNIX. Although for legal reasons FreeBSD cannot be called “UNIX”, as the direct descendant of BSD UNIX , FreeBSD’s internals and system APIs are UNIX-compliant... , Debian GNU/kFreeBSD, Gentoo/FreeBSD Gentoo/FreeBSD Gentoo/FreeBSD is a Unix-like operating system developed by Gentoo Linux developers in order to bring Gentoo Linux design, structure, and tools such as Portage and the Gentoo Linux baselayout to the FreeBSD operating system... |
The FreeBSD Project FreeBSD FreeBSD is a free Unix-like operating system descended from AT&T UNIX via BSD UNIX. Although for legal reasons FreeBSD cannot be called “UNIX”, as the direct descendant of BSD UNIX , FreeBSD’s internals and system APIs are UNIX-compliant... |
ELF Executable and Linkable Format In computing, the Executable and Linkable Format is a common standard file format for executables, object code, shared libraries, and core dumps. First published in the System V Application Binary Interface specification, and later in the Tool Interface Standard, it was quickly accepted among... , others - platform dependent |
monolithic Monolithic kernel A monolithic kernel is an operating system architecture where the entire operating system is working in the kernel space and alone as supervisor mode... |
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| GNU Hurd GNU Hurd GNU Hurd is a free software Unix-like replacement for the Unix kernel, released under the GNU General Public License. It has been under development since 1990 by the GNU Project of the Free Software Foundation... http://hurd.gnu.org/ |
Bee GNU/Hurd, Debian GNU/Hurd Debian GNU/Hurd Debian GNU/Hurd is the Debian project's distribution of the GNU operating system, using the GNU Hurd microkernel. Its developers are hoping to be able to release Debian GNU/Hurd for the next major release of Debian, "wheezy".... |
GNU Project GNU Project The GNU Project is a free software, mass collaboration project, announced on September 27, 1983, by Richard Stallman at MIT. It initiated GNU operating system development in January, 1984... /Free Software Foundation Free Software Foundation The Free Software Foundation is a non-profit corporation founded by Richard Stallman on 4 October 1985 to support the free software movement, a copyleft-based movement which aims to promote the universal freedom to create, distribute and modify computer software... |
ELF Executable and Linkable Format In computing, the Executable and Linkable Format is a common standard file format for executables, object code, shared libraries, and core dumps. First published in the System V Application Binary Interface specification, and later in the Tool Interface Standard, it was quickly accepted among... |
microkernel Microkernel In computer science, a microkernel is the near-minimum amount of software that can provide the mechanisms needed to implement an operating system . These mechanisms include low-level address space management, thread management, and inter-process communication... |
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| GNU Mach GNU Mach GNU Mach is an implementation of the Mach microkernel. It is the default microkernel in the GNU Hurd operating system. GNU Mach runs on IA-32 machines. GNU Mach is maintained by developers on the GNU project... http://www.gnu.org/software/hurd/gnumach.html |
GNU Project GNU Project The GNU Project is a free software, mass collaboration project, announced on September 27, 1983, by Richard Stallman at MIT. It initiated GNU operating system development in January, 1984... /Free Software Foundation Free Software Foundation The Free Software Foundation is a non-profit corporation founded by Richard Stallman on 4 October 1985 to support the free software movement, a copyleft-based movement which aims to promote the universal freedom to create, distribute and modify computer software... |
microkernel Microkernel In computer science, a microkernel is the near-minimum amount of software that can provide the mechanisms needed to implement an operating system . These mechanisms include low-level address space management, thread management, and inter-process communication... |
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| Inferno kernel Inferno (operating system) Inferno is a distributed operating system started at Bell Labs, but is now developed and maintained by Vita Nuova Holdings as free software. Inferno was based on the experience gained with Plan 9 from Bell Labs, and the further research of Bell Labs into operating systems, languages, on-the-fly... |
Inferno Inferno (operating system) Inferno is a distributed operating system started at Bell Labs, but is now developed and maintained by Vita Nuova Holdings as free software. Inferno was based on the experience gained with Plan 9 from Bell Labs, and the further research of Bell Labs into operating systems, languages, on-the-fly... |
Bell Labs Bell Labs Bell Laboratories is the research and development subsidiary of the French-owned Alcatel-Lucent and previously of the American Telephone & Telegraph Company , half-owned through its Western Electric manufacturing subsidiary.Bell Laboratories operates its... / Vita Nuova Holdings |
virtual machine Virtual machine A virtual machine is a "completely isolated guest operating system installation within a normal host operating system". Modern virtual machines are implemented with either software emulation or hardware virtualization or both together.-VM Definitions:A virtual machine is a software... |
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| L4 L4 microkernel family L4 is a family of second-generation microkernels, generally used to implement Unix-like operating systems, but also used in a variety of other systems.L4 was a response to the poor performance of earlier microkernel-base operating systems... |
L4 L4 microkernel family L4 is a family of second-generation microkernels, generally used to implement Unix-like operating systems, but also used in a variety of other systems.L4 was a response to the poor performance of earlier microkernel-base operating systems... |
Jochen Liedtke Jochen Liedtke Jochen Liedtke was a German computer scientist, noted for his work on microkernels, especially the creation of the L4 microkernel family.... |
microkernel Microkernel In computer science, a microkernel is the near-minimum amount of software that can provide the mechanisms needed to implement an operating system . These mechanisms include low-level address space management, thread management, and inter-process communication... |
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| Linux kernel Linux kernel The Linux kernel is an operating system kernel used by the Linux family of Unix-like operating systems. It is one of the most prominent examples of free and open source software.... http://www.kernel.org/ |
Linux Linux Linux is a Unix-like computer operating system assembled under the model of free and open source software development and distribution. The defining component of any Linux system is the Linux kernel, an operating system kernel first released October 5, 1991 by Linus Torvalds... |
Linus Torvalds Linus Torvalds Linus Benedict Torvalds is a Finnish software engineer and hacker, best known for having initiated the development of the open source Linux kernel. He later became the chief architect of the Linux kernel, and now acts as the project's coordinator... |
ELF Executable and Linkable Format In computing, the Executable and Linkable Format is a common standard file format for executables, object code, shared libraries, and core dumps. First published in the System V Application Binary Interface specification, and later in the Tool Interface Standard, it was quickly accepted among... , others |
monolithic Monolithic kernel A monolithic kernel is an operating system architecture where the entire operating system is working in the kernel space and alone as supervisor mode... |
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| Mach Mach (kernel) Mach is an operating system kernel developed at Carnegie Mellon University to support operating system research, primarily distributed and parallel computation. Although Mach is often mentioned as one of the earliest examples of a microkernel, not all versions of Mach are microkernels... http://www.cs.cmu.edu/afs/cs/project/mach/public/www/mach.html |
NextStep NEXTSTEP NeXTSTEP was the object-oriented, multitasking operating system developed by NeXT Computer to run on its range of proprietary workstation computers, such as the NeXTcube... and OpenStep OpenStep OpenStep was an object-oriented application programming interface specification for an object-oriented operating system that used a non-NeXTSTEP operating system as its core, principally developed by NeXT with Sun Microsystems. OPENSTEP was a specific implementation of the OpenStep API developed... |
Carnegie Mellon University Carnegie Mellon University Carnegie Mellon University is a private research university in Pittsburgh, Pennsylvania, United States.... |
Mach-O Mach-O Mach-O, short for Mach object file format, is a file format for executables, object code, shared libraries, dynamically-loaded code, and core dumps. A replacement for the a.out format, Mach-O offered more extensibility and faster access to information in the symbol table.Mach-O was once used by... |
microkernel Microkernel In computer science, a microkernel is the near-minimum amount of software that can provide the mechanisms needed to implement an operating system . These mechanisms include low-level address space management, thread management, and inter-process communication... |
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| Minix 3 MINIX 3 MINIX 3 is a project to create a small, highly reliable and functional Unix-like operating system. It is published under the BSD license.The main goal of the project is for the system to be fault-tolerant by detecting and repairing its own faults on the fly, without user intervention... http://www.minix3.org |
Minix 3 MINIX 3 MINIX 3 is a project to create a small, highly reliable and functional Unix-like operating system. It is published under the BSD license.The main goal of the project is for the system to be fault-tolerant by detecting and repairing its own faults on the fly, without user intervention... |
Andrew S. Tanenbaum Andrew S. Tanenbaum Andrew Stuart "Andy" Tanenbaum is a professor of computer science at the Vrije Universiteit, Amsterdam in the Netherlands. He is best known as the author of MINIX, a free Unix-like operating system for teaching purposes, and for his computer science textbooks, regarded as standard texts in the... |
a.out |
microkernel Microkernel In computer science, a microkernel is the near-minimum amount of software that can provide the mechanisms needed to implement an operating system . These mechanisms include low-level address space management, thread management, and inter-process communication... |
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| MkLinux MkLinux MkLinux is an open source computer operating system started by the OSF Research Institute and Apple Computer in February 1996 to port Linux to the PowerPC platform, and Macintosh computers... http://www.mklinux.org |
OSF Research Institute and Apple Computer Apple Computer Apple Inc. is an American multinational corporation that designs and markets consumer electronics, computer software, and personal computers. The company's best-known hardware products include the Macintosh line of computers, the iPod, the iPhone and the iPad... |
microkernel Microkernel In computer science, a microkernel is the near-minimum amount of software that can provide the mechanisms needed to implement an operating system . These mechanisms include low-level address space management, thread management, and inter-process communication... |
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| NetBSD kernel NetBSD NetBSD is a freely available open source version of the Berkeley Software Distribution Unix operating system. It was the second open source BSD descendant to be formally released, after 386BSD, and continues to be actively developed. The NetBSD project is primarily focused on high quality design,... |
NetBSD NetBSD NetBSD is a freely available open source version of the Berkeley Software Distribution Unix operating system. It was the second open source BSD descendant to be formally released, after 386BSD, and continues to be actively developed. The NetBSD project is primarily focused on high quality design,... , Debian GNU/NetBSD, |
The NetBSD Project NetBSD NetBSD is a freely available open source version of the Berkeley Software Distribution Unix operating system. It was the second open source BSD descendant to be formally released, after 386BSD, and continues to be actively developed. The NetBSD project is primarily focused on high quality design,... |
ELF Executable and Linkable Format In computing, the Executable and Linkable Format is a common standard file format for executables, object code, shared libraries, and core dumps. First published in the System V Application Binary Interface specification, and later in the Tool Interface Standard, it was quickly accepted among... , others - platform dependent |
monolithic Monolithic kernel A monolithic kernel is an operating system architecture where the entire operating system is working in the kernel space and alone as supervisor mode... |
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| NetWare kernel Novell NetWare NetWare is a network operating system developed by Novell, Inc. It initially used cooperative multitasking to run various services on a personal computer, with network protocols based on the archetypal Xerox Network Systems stack.... |
Novell NetWare Novell NetWare NetWare is a network operating system developed by Novell, Inc. It initially used cooperative multitasking to run various services on a personal computer, with network protocols based on the archetypal Xerox Network Systems stack.... |
Novell Novell Novell, Inc. is a multinational software and services company. It is a wholly owned subsidiary of The Attachmate Group. It specializes in network operating systems, such as Novell NetWare; systems management solutions, such as Novell ZENworks; and collaboration solutions, such as Novell Groupwise... |
NLM | hybrid Hybrid kernel A hybrid kernel is a kernel architecture based on combining aspects of microkernel and monolithic kernel architectures used in computer operating systems. The category is controversial due to the similarity to monolithic kernel; the term has been dismissed by Linus Torvalds as simple marketing... |
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| OpenBSD kernel OpenBSD OpenBSD is a Unix-like computer operating system descended from Berkeley Software Distribution , a Unix derivative developed at the University of California, Berkeley. It was forked from NetBSD by project leader Theo de Raadt in late 1995... |
OpenBSD OpenBSD OpenBSD is a Unix-like computer operating system descended from Berkeley Software Distribution , a Unix derivative developed at the University of California, Berkeley. It was forked from NetBSD by project leader Theo de Raadt in late 1995... |
OpenBSD developers | ELF Executable and Linkable Format In computing, the Executable and Linkable Format is a common standard file format for executables, object code, shared libraries, and core dumps. First published in the System V Application Binary Interface specification, and later in the Tool Interface Standard, it was quickly accepted among... , others - platform dependent |
monolithic Monolithic kernel A monolithic kernel is an operating system architecture where the entire operating system is working in the kernel space and alone as supervisor mode... |
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| Plan 9 kernel | Plan 9 from Bell Labs Plan 9 from Bell Labs Plan 9 from Bell Labs is a distributed operating system. It was developed primarily for research purposes as the successor to Unix by the Computing Sciences Research Center at Bell Labs between the mid-1980s and 2002... |
Bell Labs Bell Labs Bell Laboratories is the research and development subsidiary of the French-owned Alcatel-Lucent and previously of the American Telephone & Telegraph Company , half-owned through its Western Electric manufacturing subsidiary.Bell Laboratories operates its... |
hybrid Hybrid kernel A hybrid kernel is a kernel architecture based on combining aspects of microkernel and monolithic kernel architectures used in computer operating systems. The category is controversial due to the similarity to monolithic kernel; the term has been dismissed by Linus Torvalds as simple marketing... |
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| ReactOS kernel ReactOS ReactOS is an open source computer operating system intended to be binary compatible with application software and device drivers made for Microsoft Windows NT versions 5.x and up... |
ReactOS ReactOS ReactOS is an open source computer operating system intended to be binary compatible with application software and device drivers made for Microsoft Windows NT versions 5.x and up... |
ReactOS Foundation | PE Portable Executable The Portable Executable format is a file format for executables, object code and DLLs, used in 32-bit and 64-bit versions of Windows operating systems. The term "portable" refers to the format's versatility in numerous environments of operating system software architecture... , others? |
hybrid Hybrid kernel A hybrid kernel is a kernel architecture based on combining aspects of microkernel and monolithic kernel architectures used in computer operating systems. The category is controversial due to the similarity to monolithic kernel; the term has been dismissed by Linus Torvalds as simple marketing... |
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| Rockbox kernel Rockbox Rockbox is a replacement for the standard firmware in various forms of digital audio players . It offers an alternative to the player's operating system, in many cases without removing the original firmware, which provides a plug-in architecture for adding various enhancements and functions... |
Rockbox Rockbox Rockbox is a replacement for the standard firmware in various forms of digital audio players . It offers an alternative to the player's operating system, in many cases without removing the original firmware, which provides a plug-in architecture for adding various enhancements and functions... |
The Rockbox Project | ||||||||||||
| SunOS kernel SunOS SunOS is a version of the Unix operating system developed by Sun Microsystems for their workstation and server computer systems. The SunOS name is usually only used to refer to versions 1.0 to 4.1.4 of SunOS... |
SunOS SunOS SunOS is a version of the Unix operating system developed by Sun Microsystems for their workstation and server computer systems. The SunOS name is usually only used to refer to versions 1.0 to 4.1.4 of SunOS... |
Sun Microsystems Sun Microsystems Sun Microsystems, Inc. was a company that sold :computers, computer components, :computer software, and :information technology services. Sun was founded on February 24, 1982... |
a.out |
monolithic Monolithic kernel A monolithic kernel is an operating system architecture where the entire operating system is working in the kernel space and alone as supervisor mode... |
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| Solaris kernel | Solaris, OpenSolaris OpenSolaris OpenSolaris was an open source computer operating system based on Solaris created by Sun Microsystems. It was also the name of the project initiated by Sun to build a developer and user community around the software... , Nexenta OS |
Sun Microsystems Sun Microsystems Sun Microsystems, Inc. was a company that sold :computers, computer components, :computer software, and :information technology services. Sun was founded on February 24, 1982... |
ELF Executable and Linkable Format In computing, the Executable and Linkable Format is a common standard file format for executables, object code, shared libraries, and core dumps. First published in the System V Application Binary Interface specification, and later in the Tool Interface Standard, it was quickly accepted among... (32-bit only until Solaris 7 in 1998) |
monolithic Monolithic kernel A monolithic kernel is an operating system architecture where the entire operating system is working in the kernel space and alone as supervisor mode... |
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| Trix | Massachusetts Institute of Technology Massachusetts Institute of Technology The Massachusetts Institute of Technology is a private research university located in Cambridge, Massachusetts. MIT has five schools and one college, containing a total of 32 academic departments, with a strong emphasis on scientific and technological education and research.Founded in 1861 in... |
monolithic Monolithic kernel A monolithic kernel is an operating system architecture where the entire operating system is working in the kernel space and alone as supervisor mode... |
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| Windows NT kernel http://www.microsoft.com/windows | Windows NT Windows NT Windows NT is a family of operating systems produced by Microsoft, the first version of which was released in July 1993. It was a powerful high-level-language-based, processor-independent, multiprocessing, multiuser operating system with features comparable to Unix. It was intended to complement... , 2000 Windows 2000 Windows 2000 is a line of operating systems produced by Microsoft for use on personal computers, business desktops, laptops, and servers. Windows 2000 was released to manufacturing on 15 December 1999 and launched to retail on 17 February 2000. It is the successor to Windows NT 4.0, and is the... , XP Windows XP Windows XP is an operating system produced by Microsoft for use on personal computers, including home and business desktops, laptops and media centers. First released to computer manufacturers on August 24, 2001, it is the second most popular version of Windows, based on installed user base... , 2003, Vista Windows Vista Windows Vista is an operating system released in several variations developed by Microsoft for use on personal computers, including home and business desktops, laptops, tablet PCs, and media center PCs... , Windows 7 |
Microsoft Microsoft Microsoft Corporation is an American public multinational corporation headquartered in Redmond, Washington, USA that develops, manufactures, licenses, and supports a wide range of products and services predominantly related to computing through its various product divisions... |
PE Portable Executable The Portable Executable format is a file format for executables, object code and DLLs, used in 32-bit and 64-bit versions of Windows operating systems. The term "portable" refers to the format's versatility in numerous environments of operating system software architecture... , others? |
hybrid Hybrid kernel A hybrid kernel is a kernel architecture based on combining aspects of microkernel and monolithic kernel architectures used in computer operating systems. The category is controversial due to the similarity to monolithic kernel; the term has been dismissed by Linus Torvalds as simple marketing... |
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| XNU XNU XNU is the computer operating system kernel that Apple Inc. acquired and developed for use in the Mac OS X operating system and released as free and open source software as part of the Darwin operating system... (Darwin Darwin (operating system) Darwin is an open source POSIX-compliant computer operating system released by Apple Inc. in 2000. It is composed of code developed by Apple, as well as code derived from NeXTSTEP, BSD, and other free software projects.... kernel) http://developer.apple.com/darwin/ |
Mac OS X Mac OS X Mac OS X is a series of Unix-based operating systems and graphical user interfaces developed, marketed, and sold by Apple Inc. Since 2002, has been included with all new Macintosh computer systems... , OpenDarwin, GNU/Darwin GNU-Darwin GNU-Darwin is a project to package applications for the Mac OS X and Darwin operating systems. They also distribute versions of the Darwin operating system and the OpenDarwin operating system which is based on Darwin, although the versions they distribute tend to lag behind the current releases... |
Apple Computer Apple Computer Apple Inc. is an American multinational corporation that designs and markets consumer electronics, computer software, and personal computers. The company's best-known hardware products include the Macintosh line of computers, the iPod, the iPhone and the iPad... |
Mach-O Mach-O Mach-O, short for Mach object file format, is a file format for executables, object code, shared libraries, dynamically-loaded code, and core dumps. A replacement for the a.out format, Mach-O offered more extensibility and faster access to information in the symbol table.Mach-O was once used by... |
hybrid Hybrid kernel A hybrid kernel is a kernel architecture based on combining aspects of microkernel and monolithic kernel architectures used in computer operating systems. The category is controversial due to the similarity to monolithic kernel; the term has been dismissed by Linus Torvalds as simple marketing... |
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| SPARTAN kernel HelenOS HelenOS is an operating system based on a multiserver microkernel design. The source code of HelenOS is published under a BSD License.- Technical overview :... http://www.helenos.eu/ |
HelenOS HelenOS HelenOS is an operating system based on a multiserver microkernel design. The source code of HelenOS is published under a BSD License.- Technical overview :... |
Jakub Jermar | ELF Executable and Linkable Format In computing, the Executable and Linkable Format is a common standard file format for executables, object code, shared libraries, and core dumps. First published in the System V Application Binary Interface specification, and later in the Tool Interface Standard, it was quickly accepted among... |
microkernel Microkernel In computer science, a microkernel is the near-minimum amount of software that can provide the mechanisms needed to implement an operating system . These mechanisms include low-level address space management, thread management, and inter-process communication... |
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| Kernel name | Used in | Creator | Executable format (also see section below) |
Type | Integrated firewall | SMP Symmetric multiprocessing In computing, symmetric multiprocessing involves a multiprocessor computer hardware architecture where two or more identical processors are connected to a single shared main memory and are controlled by a single OS instance. Most common multiprocessor systems today use an SMP architecture... support |
Multiple architecture Computer architecture In computer science and engineering, computer architecture is the practical art of selecting and interconnecting hardware components to create computers that meet functional, performance and cost goals and the formal modelling of those systems.... support (also see section below). |
Multitasking Computer multitasking In computing, multitasking is a method where multiple tasks, also known as processes, share common processing resources such as a CPU. In the case of a computer with a single CPU, only one task is said to be running at any point in time, meaning that the CPU is actively executing instructions for... |
Virtualization Operating system-level virtualization Operating system-level virtualization is a server virtualization method where the kernel of an operating system allows for multiple isolated user-space instances, instead of just one. Such instances may look and feel like a real server, from the point of view of its owner... |
Security Security Security is the degree of protection against danger, damage, loss, and crime. Security as a form of protection are structures and processes that provide or improve security as a condition. The Institute for Security and Open Methodologies in the OSSTMM 3 defines security as "a form of protection... |
Profiling/Debugging Debugging Debugging is a methodical process of finding and reducing the number of bugs, or defects, in a computer program or a piece of electronic hardware, thus making it behave as expected. Debugging tends to be harder when various subsystems are tightly coupled, as changes in one may cause bugs to emerge... |
Soft real-time Real-time computing In computer science, real-time computing , or reactive computing, is the study of hardware and software systems that are subject to a "real-time constraint"— e.g. operational deadlines from event to system response. Real-time programs must guarantee response within strict time constraints... support |
Hard real-time Real-time computing In computer science, real-time computing , or reactive computing, is the study of hardware and software systems that are subject to a "real-time constraint"— e.g. operational deadlines from event to system response. Real-time programs must guarantee response within strict time constraints... support |
Can keep RTC Real-time clock A real-time clock is a computer clock that keeps track of the current time. Although the term often refers to the devices in personal computers, servers and embedded systems, RTCs are present in almost any electronic device which needs to keep accurate time.-Terminology:The term is used to avoid... in UT Universal Time Universal Time is a time scale based on the rotation of the Earth. It is a modern continuation of Greenwich Mean Time , i.e., the mean solar time on the Prime Meridian at Greenwich, and GMT is sometimes used loosely as a synonym for UTC... |
Transport protocol support
| Kernel Name | TCP Transmission Control Protocol The Transmission Control Protocol is one of the core protocols of the Internet Protocol Suite. TCP is one of the two original components of the suite, complementing the Internet Protocol , and therefore the entire suite is commonly referred to as TCP/IP... |
UDP User Datagram Protocol The User Datagram Protocol is one of the core members of the Internet Protocol Suite, the set of network protocols used for the Internet. With UDP, computer applications can send messages, in this case referred to as datagrams, to other hosts on an Internet Protocol network without requiring... |
SCTP | DCCP |
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| FreeBSD kernel FreeBSD FreeBSD is a free Unix-like operating system descended from AT&T UNIX via BSD UNIX. Although for legal reasons FreeBSD cannot be called “UNIX”, as the direct descendant of BSD UNIX , FreeBSD’s internals and system APIs are UNIX-compliant... |
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| Linux kernel Linux kernel The Linux kernel is an operating system kernel used by the Linux family of Unix-like operating systems. It is one of the most prominent examples of free and open source software.... |
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| XNU XNU XNU is the computer operating system kernel that Apple Inc. acquired and developed for use in the Mac OS X operating system and released as free and open source software as part of the Darwin operating system... |
In-kernel Security
| Kernel Name | File access control | Disable memory execution NX bit The NX bit, which stands for No eXecute, is a technology used in CPUs to segregate areas of memory for use by either storage of processor instructions or for storage of data, a feature normally only found in Harvard architecture processors... support |
Kernel ASLR Address space layout randomization Address space layout randomization is a computer security method which involves randomly arranging the positions of key data areas, usually including the base of the executable and position of libraries, heap, and stack, in a process's address space.- Benefits :Address space randomization hinders... |
Mandatory access control Mandatory access control In computer security, mandatory access control refers to a type of access control by which the operating system constrains the ability of a subject or initiator to access or generally perform some sort of operation on an object or target... |
Capability-based security Capability-based security Capability-based security is a concept in the design of secure computing systems, one of the existing security models. A capability is a communicable, unforgeable token of authority. It refers to a value that references an object along with an associated set of access rights... |
In-kernel key management | Audit API | Sandbox Sandbox (computer security) In computer security, a sandbox is a security mechanism for separating running programs. It is often used to execute untested code, or untrusted programs from unverified third-parties, suppliers, untrusted users and untrusted websites.... |
SYN flood SYN flood A SYN flood is a form of denial-of-service attack in which an attacker sends a succession of SYN requests to a target's system in an attempt to consume enough server resources to make the system unresponsive to legitimate traffic.-Technical details:... protection |
UDP flood protection | Ping flood Ping flood A ping flood is a simple denial-of-service attack where the attacker/s overwhelms the victim with ICMP Echo Request packets. It is most successful if the attacker has more bandwidth than the victim... protection |
Smurf attack Smurf attack The Smurf attack is a way of generating significant computer network traffic on a victim network. This is a type of denial-of-service attack that floods a target system via spoofed broadcast ping messages.... protection |
Network Behavior Analysis |
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In-kernel Virtualization
| Kernel Name | Container Operating system-level virtualization Operating system-level virtualization is a server virtualization method where the kernel of an operating system allows for multiple isolated user-space instances, instead of just one. Such instances may look and feel like a real server, from the point of view of its owner... (no resource management, no security) |
Container Operating system-level virtualization Operating system-level virtualization is a server virtualization method where the kernel of an operating system allows for multiple isolated user-space instances, instead of just one. Such instances may look and feel like a real server, from the point of view of its owner... (no resource management) |
Container Operating system-level virtualization Operating system-level virtualization is a server virtualization method where the kernel of an operating system allows for multiple isolated user-space instances, instead of just one. Such instances may look and feel like a real server, from the point of view of its owner... (resource management) |
Paravirtualization Paravirtualization In computing, paravirtualization is a virtualization technique that presents a software interface to virtual machines that is similar but not identical to that of the underlying hardware.... |
Full virtualization Full virtualization In computer science, full virtualization is a virtualization technique used to provide a certain kind of virtual machine environment, namely, one that is a complete simulation of the underlying hardware... |
User-space execution |
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| XNU |
In-kernel server support
| Kernel Name | HTTP | FTP | NFS | CIFS | Name server Name server In computing, a name server is a program or computer server that implements a name-service protocol. It maps a human-recognizable identifier to a system-internal, often numeric, identification or addressing component.... |
transport-layer load balancer | application-layer load balancer | 9P 9P 9P is a network protocol developed for the Plan 9 from Bell Labs distributed operating system as the means of connecting the components of a Plan 9 system. Files are key objects in Plan 9. They represent windows, network connections, processes, and almost anything else available in the operating... |
SSL proxy |
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| Linux kernel Linux kernel The Linux kernel is an operating system kernel used by the Linux family of Unix-like operating systems. It is one of the most prominent examples of free and open source software.... |
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| XNU XNU XNU is the computer operating system kernel that Apple Inc. acquired and developed for use in the Mac OS X operating system and released as free and open source software as part of the Darwin operating system... |
Binary format support
A comparison of OS support for different binary formats (executables):| Kernel Name | a.out A.out (file format) a.out is a file format used in older versions of Unix-like computer operating systems for executables, object code, and, in later systems, shared libraries... |
ECOFF ECOFF The Extended Common Object File Format is a file format for executables, object code, and shared libraries.ECOFF was developed for the MIPS platform, and was used by DEC Ultrix and Tru64 , SGI Irix, and Linux/MIPS.- External links :*... |
ELF Executable and Linkable Format In computing, the Executable and Linkable Format is a common standard file format for executables, object code, shared libraries, and core dumps. First published in the System V Application Binary Interface specification, and later in the Tool Interface Standard, it was quickly accepted among... |
FDPIC ELF binaries (mmu less) |
flat binaries (superH) |
HUNK Amiga Hunk Hunk is the executable file format of tools and programs of the Amiga Operating System based on Motorola 68000 CPU and other processors of the same family.... |
Mach-O Mach-O Mach-O, short for Mach object file format, is a file format for executables, object code, shared libraries, dynamically-loaded code, and core dumps. A replacement for the a.out format, Mach-O offered more extensibility and faster access to information in the symbol table.Mach-O was once used by... |
Misc (wrapper based, like interpreters) |
PE Portable Executable The Portable Executable format is a file format for executables, object code and DLLs, used in 32-bit and 64-bit versions of Windows operating systems. The term "portable" refers to the format's versatility in numerous environments of operating system software architecture... |
SOM (PA-RISC, HP-UX) |
NLM | PEF Preferred Executable Format The Preferred Executable Format is a file format that specifies the format of executable files and other object code. PEF executables are also called Code Fragment Manager files .... |
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| HP-UX HP-UX HP-UX is Hewlett-Packard's proprietary implementation of the Unix operating system, based on UNIX System V and first released in 1984... |
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| Linux kernel Linux kernel The Linux kernel is an operating system kernel used by the Linux family of Unix-like operating systems. It is one of the most prominent examples of free and open source software.... |
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| MINIX 3 MINIX 3 MINIX 3 is a project to create a small, highly reliable and functional Unix-like operating system. It is published under the BSD license.The main goal of the project is for the system to be fault-tolerant by detecting and repairing its own faults on the fly, without user intervention... |
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| NetBSD kernel NetBSD NetBSD is a freely available open source version of the Berkeley Software Distribution Unix operating system. It was the second open source BSD descendant to be formally released, after 386BSD, and continues to be actively developed. The NetBSD project is primarily focused on high quality design,... |
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| ReactOS kernel ReactOS ReactOS is an open source computer operating system intended to be binary compatible with application software and device drivers made for Microsoft Windows NT versions 5.x and up... |
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| XNU XNU XNU is the computer operating system kernel that Apple Inc. acquired and developed for use in the Mac OS X operating system and released as free and open source software as part of the Darwin operating system... |
File system support
Physical file systemFile system
A file system is a means to organize data expected to be retained after a program terminates by providing procedures to store, retrieve and update data, as well as manage the available space on the device which contain it. A file system organizes data in an efficient manner and is tuned to the...
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| Kernel | Acorn ADFS Advanced Disc Filing System The Advanced Disc Filing System is a computing file system particular to the Acorn computer range and RISC OS based successors. Initially based on the rare Acorn Winchester Filing System, it was renamed to the Advanced Disc Filing System when support for floppy discs was added and on later 32 bit... |
Amiga FFS | BeFS | BFS Boot File System The Boot File System was used on UnixWare to store files necessary to its boot process.... |
cramfs Cramfs The compressed ROM file system is a free read-only Linux file system designed for simplicity and space-efficiency. It is mainly used in embedded systems and small-footprint systems.... |
EFS | ext2 Ext2 The ext2 or second extended filesystem is a file system for the Linux kernel. It was initially designed by Rémy Card as a replacement for the extended file system .... |
ext3 Ext3 The ext3 or third extended filesystem is a journaled file system that is commonly used by the Linux kernel. It is the default file system for many popular Linux distributions, including Debian... |
ext4 Ext4 The ext4 or fourth extended filesystem is a journaling file system for Linux, developed as the successor to ext3.It was born as a series of backward compatible extensions to ext3, many of them originally developed by Cluster File Systems for the Lustre file system between 2003 and 2006, meant to... |
FAT File Allocation Table File Allocation Table is a computer file system architecture now widely used on many computer systems and most memory cards, such as those used with digital cameras. FAT file systems are commonly found on floppy disks, flash memory cards, digital cameras, and many other portable devices because of... |
FreeVxFS | HFS Hierarchical File System Hierarchical File System is a file system developed by Apple Inc. for use in computer systems running Mac OS. Originally designed for use on floppy and hard disks, it can also be found on read-only media such as CD-ROMs... |
HFS+ | HPFS | ISO 9660 ISO 9660 ISO 9660, also referred to as CDFS by some hardware and software providers, is a file system standard published by the International Organization for Standardization for optical disc media.... |
JFFS JFFS The Journaling Flash File System is a log-structured file system for use on NOR flash memory devices on the Linux operating system. It has been superseded by JFFS2.- Design :... |
JFFS2 JFFS2 Journalling Flash File System version 2 or JFFS2 is a log-structured file system for use with flash memory devices. It is the successor to JFFS. JFFS2 has been included in the Linux kernel since the 2.4.10 release. JFFS2 is also available for a couple of bootloaders like Das U-Boot, Open... |
JFS | Minix fs | NSS Novell Storage Services Novell Storage Services is a file system used by the Novell NetWare operating system. Recently support of NSS was introduced to SUSE Linux via low-level network NCPFS protocol... |
NTFS NTFS NTFS is the standard file system of Windows NT, including its later versions Windows 2000, Windows XP, Windows Server 2003, Windows Server 2008, Windows Vista, and Windows 7.... |
OCFS OCFS OCFS is a shared disk file system developed by Oracle Corporation and released under the GNU General Public License.... |
QNX4 FS | System V FS | UDF Universal Disk Format Universal Disk Format is an implementation of the specification known as ISO/IEC 13346 and ECMA-167 and is an open vendor-neutral file system for computer data storage for a broad range of media. In practice, it has been most widely used for DVDs and newer optical disc formats, supplanting ISO 9660... |
UFS Unix File System The Unix file system is a file system used by many Unix and Unix-like operating systems. It is also called the Berkeley Fast File System, the BSD Fast File System or FFS... |
XFS XFS XFS is a high-performance journaling file system created by Silicon Graphics, Inc. It is the default file system in IRIX releases 5.3 and onwards and later ported to the Linux kernel. XFS is particularly proficient at parallel IO due to its allocation group based design... |
ZFS ZFS In computing, ZFS is a combined file system and logical volume manager designed by Sun Microsystems. The features of ZFS include data integrity verification against data corruption modes , support for high storage capacities, integration of the concepts of filesystem and volume management,... |
ReiserFS ReiserFS ReiserFS is a general-purpose, journaled computer file system designed and implemented by a team at Namesys led by Hans Reiser. ReiserFS is currently supported on Linux . Introduced in version 2.4.1 of the Linux kernel, it was the first journaling file system to be included in the standard kernel... |
Reiser4 Reiser4 Reiser4 is a computer file system, successor to the ReiserFS file system, developed from scratch by Namesys and sponsored by DARPA as well as Linspire... |
Btrfs Btrfs Btrfs is a GPL-licensed copy-on-write file system for Linux.Development began at Oracle Corporation in 2007.... |
HAMMER | Tux3 Tux3 Tux3 is an open-source versioning filesystem created by Daniel Phillips. He introduced the filesystem as a public replacement for his Tux2 filesystem which had encountered licensing issues due to the filing of several patents. Phillips had previously created the Htree directory indexing system... |
exFAT ExFAT exFAT is a proprietary, patent-pending file system designed especially for USB flash drives. Developed by Microsoft, it is supported in Windows XP and Windows Server 2003 with update KB955704, Windows Embedded CE 6.0, Windows Vista with Service Pack 1, Windows Server 2008, Windows 7, Windows... |
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| FreeBSD kernel FreeBSD FreeBSD is a free Unix-like operating system descended from AT&T UNIX via BSD UNIX. Although for legal reasons FreeBSD cannot be called “UNIX”, as the direct descendant of BSD UNIX , FreeBSD’s internals and system APIs are UNIX-compliant... |
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| Linux kernel Linux kernel The Linux kernel is an operating system kernel used by the Linux family of Unix-like operating systems. It is one of the most prominent examples of free and open source software.... |
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| MINIX 3 MINIX 3 MINIX 3 is a project to create a small, highly reliable and functional Unix-like operating system. It is published under the BSD license.The main goal of the project is for the system to be fault-tolerant by detecting and repairing its own faults on the fly, without user intervention... |
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| NetWare kernel Novell NetWare NetWare is a network operating system developed by Novell, Inc. It initially used cooperative multitasking to run various services on a personal computer, with network protocols based on the archetypal Xerox Network Systems stack.... |
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| ReactOS ReactOS ReactOS is an open source computer operating system intended to be binary compatible with application software and device drivers made for Microsoft Windows NT versions 5.x and up... kernel |
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| XNU XNU XNU is the computer operating system kernel that Apple Inc. acquired and developed for use in the Mac OS X operating system and released as free and open source software as part of the Darwin operating system... |
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Networked filesystem support
| Kernel Name | NFS | AFS Andrew file system The Andrew File System is a distributed networked file system which uses a set of trusted servers to present a homogeneous, location-transparent file name space to all the client workstations. It was developed by Carnegie Mellon University as part of the Andrew Project. It is named after Andrew... |
CIFS | Coda Coda Coda can denote any concluding event, summation, or section.Coda may also refer to:-Acronyms:* Calgary Olympic Development Association, the former name of the Canadian Winter Sport Institute, a non profit organization... |
9P 9P 9P is a network protocol developed for the Plan 9 from Bell Labs distributed operating system as the means of connecting the components of a Plan 9 system. Files are key objects in Plan 9. They represent windows, network connections, processes, and almost anything else available in the operating... |
Ceph Ceph -External links:* *... |
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| FreeBSD kernel FreeBSD FreeBSD is a free Unix-like operating system descended from AT&T UNIX via BSD UNIX. Although for legal reasons FreeBSD cannot be called “UNIX”, as the direct descendant of BSD UNIX , FreeBSD’s internals and system APIs are UNIX-compliant... |
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| Linux kernel Linux kernel The Linux kernel is an operating system kernel used by the Linux family of Unix-like operating systems. It is one of the most prominent examples of free and open source software.... |
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| XNU XNU XNU is the computer operating system kernel that Apple Inc. acquired and developed for use in the Mac OS X operating system and released as free and open source software as part of the Darwin operating system... |
Supported CPU architectures
| kernel | DEC Digital Equipment Corporation Digital Equipment Corporation was a major American company in the computer industry and a leading vendor of computer systems, software and peripherals from the 1960s to the 1990s... |
ARM Holdings ARM Holdings ARM Holdings plc is a British multinational semiconductor and software company headquartered in Cambridge. Its largest business is in processors, although it also designs, licenses and sells software development tools under the RealView and KEIL brands, systems and platforms, system-on-a-chip... |
HP Hewlett-Packard Hewlett-Packard Company or HP is an American multinational information technology corporation headquartered in Palo Alto, California, USA that provides products, technologies, softwares, solutions and services to consumers, small- and medium-sized businesses and large enterprises, including... |
Intel | MIPS Technologies MIPS Technologies MIPS Technologies, Inc. , formerly MIPS Computer Systems, Inc., is most widely known for developing the MIPS architecture and a series of pioneering RISC chips. MIPS provides processor architectures and cores for digital home, networking and mobile applications.MIPS Computer Systems Inc. was... |
AIM AIM alliance The AIM alliance was an alliance formed on October 2, 1991, between Apple Inc. , IBM, and Motorola to create a new computing standard based on the PowerPC architecture. The stated goal of the alliance was to challenge the dominant Wintel computing platform with a new computer design and a... |
IBM IBM International Business Machines Corporation or IBM is an American multinational technology and consulting corporation headquartered in Armonk, New York, United States. IBM manufactures and sells computer hardware and software, and it offers infrastructure, hosting and consulting services in areas... |
Renesas Electronics | Sun Microsystems Sun Microsystems Sun Microsystems, Inc. was a company that sold :computers, computer components, :computer software, and :information technology services. Sun was founded on February 24, 1982... |
Motorola Motorola Motorola, Inc. was an American multinational telecommunications company based in Schaumburg, Illinois, which was eventually divided into two independent public companies, Motorola Mobility and Motorola Solutions on January 4, 2011, after losing $4.3 billion from 2007 to 2009... |
Analog Devices Analog Devices Analog Devices, Inc. , known as ADI, is an American multinational semiconductor company specializing in data conversion and signal conditioning technology, headquartered in Norwood, Massachusetts... |
Xilinx Xilinx Xilinx, Inc. is a supplier of programmable logic devices. It is known for inventing the field programmable gate array and as the first semiconductor company with a fabless manufacturing model.... |
Renesas Electronics | Tensilica Tensilica Tensilica is an IP core company based in Silicon Valley. Tensilica is best known for its customizable microprocessor cores, the Xtensa configurable processor... |
Axis Communications Axis Communications Axis Communications AB is a Swedish manufacturer of network cameras for the physical security and video surveillance industries. It focuses on the vertical market segments transport, infrastructure, retail, banking, education, government and industrial.... |
Fujitsu Fujitsu is a Japanese multinational information technology equipment and services company headquartered in Tokyo, Japan. It is the world's third-largest IT services provider measured by revenues.... |
Atmel Atmel Atmel Corporation is a manufacturer of semiconductors, founded in 1984. Its focus is on system-level solutions built around flash microcontrollers... |
Panasonic Panasonic Panasonic is an international brand name for Japanese electric products manufacturer Panasonic Corporation, which was formerly known as Matsushita Electric Industrial Co., Ltd... |
Hyperstone | Altera Altera Altera Corporation is a Silicon Valley manufacturer of PLDs . The company offered its first programmable logic device in 1984. PLDs can be reprogrammed during the design cycle as well as in the field to perform multiple functions, and they support a fairly fast design process... |
WDC Western Design Center The Western Design Center , located in Mesa, Arizona, USA, is a company developing and manufacturing MOS 65xx-based microprocessors, microcontrollers , and related support chips... |
Sunplus Technology | Tilera Tilera Tilera Corporation is a fabless semiconductor company focusing on scalable multicore embedded processor design. The company is currently shipping multiple processors, including the TILE64, TILEPro64, and the TILEPro36, TILE-Gx36, TILE-Gx16 and TILE-Gx9... |
Texas Instruments Texas Instruments Texas Instruments Inc. , widely known as TI, is an American company based in Dallas, Texas, United States, which develops and commercializes semiconductor and computer technology... |
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| VAX VAX VAX was an instruction set architecture developed by Digital Equipment Corporation in the mid-1970s. A 32-bit complex instruction set computer ISA, it was designed to extend or replace DEC's various Programmed Data Processor ISAs... |
Alpha DEC Alpha Alpha, originally known as Alpha AXP, is a 64-bit reduced instruction set computer instruction set architecture developed by Digital Equipment Corporation , designed to replace the 32-bit VAX complex instruction set computer ISA and its implementations. Alpha was implemented in microprocessors... |
ARM ARM architecture ARM is a 32-bit reduced instruction set computer instruction set architecture developed by ARM Holdings. It was named the Advanced RISC Machine, and before that, the Acorn RISC Machine. The ARM architecture is the most widely used 32-bit ISA in numbers produced... |
PA-RISC PA-RISC family PA-RISC is an instruction set architecture developed by Hewlett-Packard. As the name implies, it is a reduced instruction set computer architecture, where the PA stands for Precision Architecture... |
x86 X86 architecture The term x86 refers to a family of instruction set architectures based on the Intel 8086 CPU. The 8086 was launched in 1978 as a fully 16-bit extension of Intel's 8-bit based 8080 microprocessor and also introduced segmentation to overcome the 16-bit addressing barrier of such designs... |
i960 | IA-64 | MIPS MIPS architecture MIPS is a reduced instruction set computer instruction set architecture developed by MIPS Technologies . The early MIPS architectures were 32-bit, and later versions were 64-bit... |
PowerPC PowerPC PowerPC is a RISC architecture created by the 1991 Apple–IBM–Motorola alliance, known as AIM... |
System/ 390 |
z/Architecture Z/Architecture z/Architecture, initially and briefly called ESA Modal Extensions , refers to IBM's 64-bit computing architecture for IBM mainframe computers. IBM introduced its first z/Architecture-based system, the zSeries Model 900, in late 2000. Later z/Architecture systems include the IBM z800, z990, z890,... |
H8300 | M16C | M32R M32R The M32R is a 32-bit RISC instruction set architecture developed by Mitsubishi for embedded microprocessors and microcontrollers. The ISA is now owned by Renesas Electronics Corporation, and the company designs and fabricates M32R implementations. M32R processors are used in embedded systems such... |
SuperH SuperH SuperH is a 32-bit reduced instruction set computer instruction set architecture developed by Hitachi. It is implemented by microcontrollers and microprocessors for embedded systems.... |
SPARC SPARC SPARC is a RISC instruction set architecture developed by Sun Microsystems and introduced in mid-1987.... |
m68k | Blackfin Blackfin The Blackfin is a family of 16- or 32-bit microprocessors developed, manufactured and marketed by Analog Devices. The family is characterized by their built-in, fixed-point digital signal processor functionality supplied by 16-bit Multiply–accumulates , accompanied on-chip by a small and... (nommu) |
MicroBlaze MicroBlaze The MicroBlaze is a soft processor core designed for Xilinx FPGAs from Xilinx. As a soft-core processor, MicroBlaze is implemented entirely in the general-purpose memory and logic fabric of Xilinx FPGAs.-Overview:... |
78K | V850 V850 The Renesas Electronics V850 is a 32-bit RISC CPU core architecture for embedded microcontrollers originally developed and manufactured by NEC, succeeded by V850 variants named V850ES, V850E, and V850E2 which run uClinux. Compilers available for it include the GNU Compiler Collection, IAR Systems... |
Xtensa | ETRAX CRIS ETRAX CRIS The ETRAX CRIS is a series of CPUs designed and manufactured by Axis Communications for use in embedded systems since 1993. The name is an acronym of the chip's features: Ethernet, Token Ring, AXis - Code Reduced Instruction Set... |
FR-V FR-V The Fujitsu FR-V is a VLIW-based RISC microprocessor, including FR-400 and FR-450 which runs Linux, and are also supported by the GNU Compiler Collection. Some processors include support with an MMU while others do not.... |
AVR32 AVR32 The AVR32 is a 32-bit RISC microprocessor architecture designed by Atmel. The microprocessor architecture was designed by a handful of people educated at the Norwegian University of Science and Technology, including lead designer Øyvind Strøm, PhD and CPU architect Erik Renno, M.Sc in Atmel's... |
MN10300 | E1 (nommu) | Nios Nios embedded processor Nios was Altera's first configurable 16-bit embedded processor for its FPGA product-line. For new designs, Altera recommends the 32-bit Nios II. It is now considered obsolete.- See also :* LatticeMico8* LatticeMico32* MicroBlaze* PicoBlaze* Micon P200... (nommu) |
Nios II Nios II Nios II is a 32-bit embedded-processor architecture designed specifically for the Altera family of FPGAs. Nios II incorporates many enhancements over the original Nios architecture, making it more suitable for a wider range of embedded computing applications, from DSP to system-control.Nios II is... |
WDC 65C816 | S+core S+core S+core is a hybrid 32/16-bit instruction set architecture by Sunplus Technology.It is supported by the Linux kernel since version 2.6.32.The microarchitecture features Advanced Microcontroller Bus Architecture support and includes SJTAG for In-circuit emulation.It is implemented on the Sunplus... |
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| FreeBSD kernel FreeBSD FreeBSD is a free Unix-like operating system descended from AT&T UNIX via BSD UNIX. Although for legal reasons FreeBSD cannot be called “UNIX”, as the direct descendant of BSD UNIX , FreeBSD’s internals and system APIs are UNIX-compliant... |
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| Linux kernel Linux kernel The Linux kernel is an operating system kernel used by the Linux family of Unix-like operating systems. It is one of the most prominent examples of free and open source software.... |
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| MINIX 3 MINIX 3 MINIX 3 is a project to create a small, highly reliable and functional Unix-like operating system. It is published under the BSD license.The main goal of the project is for the system to be fault-tolerant by detecting and repairing its own faults on the fly, without user intervention... |
In progress | In progress | In progress | ||||||||||||||||||||||||||||||||||||||||
| NetBSD kernel NetBSD NetBSD is a freely available open source version of the Berkeley Software Distribution Unix operating system. It was the second open source BSD descendant to be formally released, after 386BSD, and continues to be actively developed. The NetBSD project is primarily focused on high quality design,... |
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| NetWare kernel Novell NetWare NetWare is a network operating system developed by Novell, Inc. It initially used cooperative multitasking to run various services on a personal computer, with network protocols based on the archetypal Xerox Network Systems stack.... |
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| OpenBSD kernel OpenBSD OpenBSD is a Unix-like computer operating system descended from Berkeley Software Distribution , a Unix derivative developed at the University of California, Berkeley. It was forked from NetBSD by project leader Theo de Raadt in late 1995... |
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| Rockbox kernel Rockbox Rockbox is a replacement for the standard firmware in various forms of digital audio players . It offers an alternative to the player's operating system, in many cases without removing the original firmware, which provides a plug-in architecture for adding various enhancements and functions... |
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| Windows NT kernel | NT 5.0 RC1 and below only | NT 4.0 Windows NT 4.0 Windows NT 4.0 is a preemptive, graphical and business-oriented operating system designed to work with either uniprocessor or symmetric multi-processor computers. It was the next release of Microsoft's Windows NT line of operating systems and was released to manufacturing on 31 July 1996... and below only |
NT 3.51 Windows NT 3.51 Windows NT 3.51 is the third release of Microsoft's Windows NT line of operating systems. It was released on 30 May 1995, nine months after Windows NT 3.5. The release provided two notable feature improvements; firstly NT 3.51 was the first of a short-lived outing of Microsoft Windows on the... and NT 4.0 Windows NT 4.0 Windows NT 4.0 is a preemptive, graphical and business-oriented operating system designed to work with either uniprocessor or symmetric multi-processor computers. It was the next release of Microsoft's Windows NT line of operating systems and was released to manufacturing on 31 July 1996... only |
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| Windows CE kernel Windows CE Microsoft Windows CE is an operating system developed by Microsoft for embedded systems. Windows CE is a distinct operating system and kernel, rather than a trimmed-down version of desktop Windows... |
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| XNU XNU XNU is the computer operating system kernel that Apple Inc. acquired and developed for use in the Mac OS X operating system and released as free and open source software as part of the Darwin operating system... |
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| SPARTAN kernel HelenOS HelenOS is an operating system based on a multiserver microkernel design. The source code of HelenOS is published under a BSD License.- Technical overview :... |
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| FreeRTOS kernel FreeRTOS FreeRTOS is a real-time operating system for embedded devices, being ported to several microcontrollers. It is distributed under the GPL with an optional exception... |
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Supported kernel execution environment
| Kernel name | Linux Linux Linux is a Unix-like computer operating system assembled under the model of free and open source software development and distribution. The defining component of any Linux system is the Linux kernel, an operating system kernel first released October 5, 1991 by Linus Torvalds... |
Darwin Darwin (operating system) Darwin is an open source POSIX-compliant computer operating system released by Apple Inc. in 2000. It is composed of code developed by Apple, as well as code derived from NeXTSTEP, BSD, and other free software projects.... |
Windows NT kernel | FreeBSD FreeBSD FreeBSD is a free Unix-like operating system descended from AT&T UNIX via BSD UNIX. Although for legal reasons FreeBSD cannot be called “UNIX”, as the direct descendant of BSD UNIX , FreeBSD’s internals and system APIs are UNIX-compliant... |
NetBSD NetBSD NetBSD is a freely available open source version of the Berkeley Software Distribution Unix operating system. It was the second open source BSD descendant to be formally released, after 386BSD, and continues to be actively developed. The NetBSD project is primarily focused on high quality design,... |
Solaris | OSF/1 | Amiga Unix | SunOS | BSDI | IBCS2 systems | IRIX | Ultrix | NDIS | SVR4 |
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| FreeBSD FreeBSD FreeBSD is a free Unix-like operating system descended from AT&T UNIX via BSD UNIX. Although for legal reasons FreeBSD cannot be called “UNIX”, as the direct descendant of BSD UNIX , FreeBSD’s internals and system APIs are UNIX-compliant... |
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| Linux Linux Linux is a Unix-like computer operating system assembled under the model of free and open source software development and distribution. The defining component of any Linux system is the Linux kernel, an operating system kernel first released October 5, 1991 by Linus Torvalds... |
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| NetBSD NetBSD NetBSD is a freely available open source version of the Berkeley Software Distribution Unix operating system. It was the second open source BSD descendant to be formally released, after 386BSD, and continues to be actively developed. The NetBSD project is primarily focused on high quality design,... |
? http://hcpnet.free.fr/applebsd.html? | ? http://pkgsrc.se/emulators/peace? | http://netbsd-soc.sourceforge.net/projects/ndis/ | ||||||||||||
| OpenBSD OpenBSD OpenBSD is a Unix-like computer operating system descended from Berkeley Software Distribution , a Unix derivative developed at the University of California, Berkeley. It was forked from NetBSD by project leader Theo de Raadt in late 1995... |
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| Windows NT kernel | |||||||||||||||
| ReactOS kernel ReactOS ReactOS is an open source computer operating system intended to be binary compatible with application software and device drivers made for Microsoft Windows NT versions 5.x and up... |
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| XNU XNU XNU is the computer operating system kernel that Apple Inc. acquired and developed for use in the Mac OS X operating system and released as free and open source software as part of the Darwin operating system... |
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| Kernel name | Linux Linux Linux is a Unix-like computer operating system assembled under the model of free and open source software development and distribution. The defining component of any Linux system is the Linux kernel, an operating system kernel first released October 5, 1991 by Linus Torvalds... |
Darwin Darwin (operating system) Darwin is an open source POSIX-compliant computer operating system released by Apple Inc. in 2000. It is composed of code developed by Apple, as well as code derived from NeXTSTEP, BSD, and other free software projects.... |
Windows NT kernel | FreeBSD FreeBSD FreeBSD is a free Unix-like operating system descended from AT&T UNIX via BSD UNIX. Although for legal reasons FreeBSD cannot be called “UNIX”, as the direct descendant of BSD UNIX , FreeBSD’s internals and system APIs are UNIX-compliant... |
NetBSD NetBSD NetBSD is a freely available open source version of the Berkeley Software Distribution Unix operating system. It was the second open source BSD descendant to be formally released, after 386BSD, and continues to be actively developed. The NetBSD project is primarily focused on high quality design,... |
Solaris | OSF/1 | Amiga Unix | SunOS | BSDI | IBCS2 systems | IRIX | Ultrix | NDIS | SVR4 |
Supported cipher algorithms
This may be usable on some situations like file system encrypting.| Kernel name | DES Data Encryption Standard The Data Encryption Standard is a block cipher that uses shared secret encryption. It was selected by the National Bureau of Standards as an official Federal Information Processing Standard for the United States in 1976 and which has subsequently enjoyed widespread use internationally. It is... |
AES Advanced Encryption Standard Advanced Encryption Standard is a specification for the encryption of electronic data. It has been adopted by the U.S. government and is now used worldwide. It supersedes DES... |
Blowfish Blowfish (cipher) Blowfish is a keyed, symmetric block cipher, designed in 1993 by Bruce Schneier and included in a large number of cipher suites and encryption products. Blowfish provides a good encryption rate in software and no effective cryptanalysis of it has been found to date... |
Triple DES Triple DES In cryptography, Triple DES is the common name for the Triple Data Encryption Algorithm block cipher, which applies the Data Encryption Standard cipher algorithm three times to each data block.... |
Serpent Serpent (cipher) Serpent is a symmetric key block cipher which was a finalist in the Advanced Encryption Standard contest, where it came second to Rijndael. Serpent was designed by Ross Anderson, Eli Biham, and Lars Knudsen.... |
Twofish Twofish In cryptography, Twofish is a symmetric key block cipher with a block size of 128 bits and key sizes up to 256 bits. It was one of the five finalists of the Advanced Encryption Standard contest, but was not selected for standardisation... |
CAST-128 CAST-128 in cryptography, CAST-128 is a block cipher used in a number of products, notably as the default cipher in some versions of GPG and PGP. It has also been approved for Canadian government use by the Communications Security Establishment... |
DES-X DES-X In cryptography, DES-X is a variant on the DES block cipher intended to increase the complexity of a brute force attack using a technique called key whitening.... |
IDEA International Data Encryption Algorithm In cryptography, the International Data Encryption Algorithm is a block cipher designed by James Massey of ETH Zurich and Xuejia Lai and was first described in 1991. As a block cipher, it is also symmetric. The algorithm was intended as a replacement for the Data Encryption Standard[DES]... |
RC2 RC2 In cryptography, RC2 is a block cipher designed by Ron Rivest in 1987. "RC" stands for "Ron's Code" or "Rivest Cipher"; other ciphers designed by Rivest include RC4, RC5 and RC6.... |
RC5 RC5 In cryptography, RC5 is a block cipher notable for its simplicity. Designed by Ronald Rivest in 1994, RC stands for "Rivest Cipher", or alternatively, "Ron's Code"... |
SEED SEED SEED is a block cipher developed by the Korean Information Security Agency. It is used broadly throughout South Korean industry, but seldom found elsewhere. It gained popularity in Korea because 40 bit SSL was not considered strong enough , so the Korean Information Security Agency developed its... |
Skipjack Skipjack (cipher) In cryptography, Skipjack is a block cipher—an algorithm for encryption—developed by the U.S. National Security Agency . Initially classified, it was originally intended for use in the controversial Clipper chip... |
TEA Tiny Encryption Algorithm In cryptography, the Tiny Encryption Algorithm is a block cipher notable for its simplicity of description and implementation, typically a few lines of code... |
XTEA XTEA In cryptography, XTEA is a block cipher designed to correct weaknesses in TEA. The cipher's designers were David Wheeler and Roger Needham of the Cambridge Computer Laboratory, and the algorithm was presented in an unpublished technical report in 1997... |
CAST-256 CAST-256 In cryptography, CAST-256 is a block cipher published in June 1998. It was submitted as a candidate for the Advanced Encryption Standard ; however, it was not among the five AES finalists. It is an extension of an earlier cipher, CAST-128; both were designed according to the "CAST" design... |
RC4 RC4 In cryptography, RC4 is the most widely used software stream cipher and is used in popular protocols such as Secure Sockets Layer and WEP... |
Camellia Camellia (cipher) In cryptography, Camellia is a 128-bit block cipher jointly developed by Mitsubishi and NTT. The cipher has been approved for use by the ISO/IEC, the European Union's NESSIE project and the Japanese CRYPTREC project... |
Anubis Anubis (cipher) Anubis is a block cipher designed by Vincent Rijmen and Paulo S. L. M. Barreto as an entrant in the NESSIE project. Anubis operates on data blocks of 128 bits, accepting keys of length 32N bits .... |
KHAZAD KHAZAD In cryptography, KHAZAD is a block cipher designed by Paulo S. L. M. Barreto together with Vincent Rijmen, one of the designers of the Advanced Encryption Standard . KHAZAD is named after Khazad-dûm, the fictional dwarven realm in the writings of J. R. R. Tolkien... |
Salsa20 Salsa20 Salsa20 is a stream cipher submitted to eSTREAM by Daniel Bernstein. It is built on a pseudorandom function based on 32-bit addition, bitwise addition and rotation operations, which maps a 256-bit key, a 64-bit nonce , and a 64-bit stream position to a 512-bit output... |
FCrypt |
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| Linux | ||||||||||||||||||||||
| Windows | ||||||||||||||||||||||
| Kernel name | DES Data Encryption Standard The Data Encryption Standard is a block cipher that uses shared secret encryption. It was selected by the National Bureau of Standards as an official Federal Information Processing Standard for the United States in 1976 and which has subsequently enjoyed widespread use internationally. It is... |
AES Advanced Encryption Standard Advanced Encryption Standard is a specification for the encryption of electronic data. It has been adopted by the U.S. government and is now used worldwide. It supersedes DES... |
Blowfish Blowfish (cipher) Blowfish is a keyed, symmetric block cipher, designed in 1993 by Bruce Schneier and included in a large number of cipher suites and encryption products. Blowfish provides a good encryption rate in software and no effective cryptanalysis of it has been found to date... |
Triple DES Triple DES In cryptography, Triple DES is the common name for the Triple Data Encryption Algorithm block cipher, which applies the Data Encryption Standard cipher algorithm three times to each data block.... |
Serpent Serpent (cipher) Serpent is a symmetric key block cipher which was a finalist in the Advanced Encryption Standard contest, where it came second to Rijndael. Serpent was designed by Ross Anderson, Eli Biham, and Lars Knudsen.... |
Twofish Twofish In cryptography, Twofish is a symmetric key block cipher with a block size of 128 bits and key sizes up to 256 bits. It was one of the five finalists of the Advanced Encryption Standard contest, but was not selected for standardisation... |
CAST-128 CAST-128 in cryptography, CAST-128 is a block cipher used in a number of products, notably as the default cipher in some versions of GPG and PGP. It has also been approved for Canadian government use by the Communications Security Establishment... |
DES-X DES-X In cryptography, DES-X is a variant on the DES block cipher intended to increase the complexity of a brute force attack using a technique called key whitening.... |
IDEA International Data Encryption Algorithm In cryptography, the International Data Encryption Algorithm is a block cipher designed by James Massey of ETH Zurich and Xuejia Lai and was first described in 1991. As a block cipher, it is also symmetric. The algorithm was intended as a replacement for the Data Encryption Standard[DES]... |
RC2 RC2 In cryptography, RC2 is a block cipher designed by Ron Rivest in 1987. "RC" stands for "Ron's Code" or "Rivest Cipher"; other ciphers designed by Rivest include RC4, RC5 and RC6.... |
RC5 RC5 In cryptography, RC5 is a block cipher notable for its simplicity. Designed by Ronald Rivest in 1994, RC stands for "Rivest Cipher", or alternatively, "Ron's Code"... |
SEED SEED SEED is a block cipher developed by the Korean Information Security Agency. It is used broadly throughout South Korean industry, but seldom found elsewhere. It gained popularity in Korea because 40 bit SSL was not considered strong enough , so the Korean Information Security Agency developed its... |
Skipjack Skipjack (cipher) In cryptography, Skipjack is a block cipher—an algorithm for encryption—developed by the U.S. National Security Agency . Initially classified, it was originally intended for use in the controversial Clipper chip... |
TEA Tiny Encryption Algorithm In cryptography, the Tiny Encryption Algorithm is a block cipher notable for its simplicity of description and implementation, typically a few lines of code... |
XTEA XTEA In cryptography, XTEA is a block cipher designed to correct weaknesses in TEA. The cipher's designers were David Wheeler and Roger Needham of the Cambridge Computer Laboratory, and the algorithm was presented in an unpublished technical report in 1997... |
CAST-256 CAST-256 In cryptography, CAST-256 is a block cipher published in June 1998. It was submitted as a candidate for the Advanced Encryption Standard ; however, it was not among the five AES finalists. It is an extension of an earlier cipher, CAST-128; both were designed according to the "CAST" design... |
RC4 RC4 In cryptography, RC4 is the most widely used software stream cipher and is used in popular protocols such as Secure Sockets Layer and WEP... |
Camellia Camellia (cipher) In cryptography, Camellia is a 128-bit block cipher jointly developed by Mitsubishi and NTT. The cipher has been approved for use by the ISO/IEC, the European Union's NESSIE project and the Japanese CRYPTREC project... |
Anubis Anubis (cipher) Anubis is a block cipher designed by Vincent Rijmen and Paulo S. L. M. Barreto as an entrant in the NESSIE project. Anubis operates on data blocks of 128 bits, accepting keys of length 32N bits .... |
KHAZAD KHAZAD In cryptography, KHAZAD is a block cipher designed by Paulo S. L. M. Barreto together with Vincent Rijmen, one of the designers of the Advanced Encryption Standard . KHAZAD is named after Khazad-dûm, the fictional dwarven realm in the writings of J. R. R. Tolkien... |
Salsa20 Salsa20 Salsa20 is a stream cipher submitted to eSTREAM by Daniel Bernstein. It is built on a pseudorandom function based on 32-bit addition, bitwise addition and rotation operations, which maps a 256-bit key, a 64-bit nonce , and a 64-bit stream position to a 512-bit output... |
FCrypt |
Supported compression algorithms
This may be usable on some situations like compression file system.| Kernel name | Deflate DEFLATE Deflate is a lossless data compression algorithm that uses a combination of the LZ77 algorithm and Huffman coding. It was originally defined by Phil Katz for version 2 of his PKZIP archiving tool and was later specified in RFC 1951.... |
zlib Zlib zlib is a software library used for data compression. zlib was written by Jean-Loup Gailly and Mark Adler and is an abstraction of the DEFLATE compression algorithm used in their gzip file compression program. Zlib is also a crucial component of many software platforms including Linux, Mac OS X,... |
LZO | LZJB LZJB LZJB is a lossless data compression algorithm invented by Jeff Bonwick to compress crash dumps and data in ZFS. It includes a number of improvements to the LZRW1 algorithm, a member of the Lempel-Ziv family of compression algorithms.-External links:* * *... |
gzip Gzip Gzip is any of several software applications used for file compression and decompression. The term usually refers to the GNU Project's implementation, "gzip" standing for GNU zip. It is based on the DEFLATE algorithm, which is a combination of Lempel-Ziv and Huffman coding... |
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| Linux | |||||
| Solaris | |||||
| Kernel name | Deflate DEFLATE Deflate is a lossless data compression algorithm that uses a combination of the LZ77 algorithm and Huffman coding. It was originally defined by Phil Katz for version 2 of his PKZIP archiving tool and was later specified in RFC 1951.... |
zlib Zlib zlib is a software library used for data compression. zlib was written by Jean-Loup Gailly and Mark Adler and is an abstraction of the DEFLATE compression algorithm used in their gzip file compression program. Zlib is also a crucial component of many software platforms including Linux, Mac OS X,... |
LZO | LZJB LZJB LZJB is a lossless data compression algorithm invented by Jeff Bonwick to compress crash dumps and data in ZFS. It includes a number of improvements to the LZRW1 algorithm, a member of the Lempel-Ziv family of compression algorithms.-External links:* * *... |
gzip Gzip Gzip is any of several software applications used for file compression and decompression. The term usually refers to the GNU Project's implementation, "gzip" standing for GNU zip. It is based on the DEFLATE algorithm, which is a combination of Lempel-Ziv and Huffman coding... |
Supported hash algorithms
| Kernel name | CRC-32 (IEEE) | CRC32c | MD2 | MD4 MD4 The MD4 Message-Digest Algorithm is a cryptographic hash function developed by Ronald Rivest in 1990. The digest length is 128 bits. The algorithm has influenced later designs, such as the MD5, SHA-1 and RIPEMD algorithms.... |
MD5 MD5 The MD5 Message-Digest Algorithm is a widely used cryptographic hash function that produces a 128-bit hash value. Specified in RFC 1321, MD5 has been employed in a wide variety of security applications, and is also commonly used to check data integrity... |
SHA-1 | SHA-256 | SHA-384 | SHA-512 | Michael MIC | RIPEMD-128 RIPEMD RIPEMD-160 is a 160-bit message digest algorithm developed in Leuven, Belgium, by Hans Dobbertin, Antoon Bosselaers and Bart Preneel at the COSIC research group at the Katholieke Universiteit Leuven, and first published in 1996... |
RIPEMD-160 RIPEMD RIPEMD-160 is a 160-bit message digest algorithm developed in Leuven, Belgium, by Hans Dobbertin, Antoon Bosselaers and Bart Preneel at the COSIC research group at the Katholieke Universiteit Leuven, and first published in 1996... |
RIPEMD-256 RIPEMD RIPEMD-160 is a 160-bit message digest algorithm developed in Leuven, Belgium, by Hans Dobbertin, Antoon Bosselaers and Bart Preneel at the COSIC research group at the Katholieke Universiteit Leuven, and first published in 1996... |
RIPEMD-320 RIPEMD RIPEMD-160 is a 160-bit message digest algorithm developed in Leuven, Belgium, by Hans Dobbertin, Antoon Bosselaers and Bart Preneel at the COSIC research group at the Katholieke Universiteit Leuven, and first published in 1996... |
Tiger | Whirlpool | HMAC HMAC In cryptography, HMAC is a specific construction for calculating a message authentication code involving a cryptographic hash function in combination with a secret key. As with any MAC, it may be used to simultaneously verify both the data integrity and the authenticity of a message... |
MDC2 | GOST | LASH-160 | LASH-256 | LASH-384 | LASH-512 |
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| Solaris | |||||||||||||||||||||||
| Windows NT | |||||||||||||||||||||||
| Kernel name | CRC-32 (IEEE) | CRC32c | MD2 | MD4 MD4 The MD4 Message-Digest Algorithm is a cryptographic hash function developed by Ronald Rivest in 1990. The digest length is 128 bits. The algorithm has influenced later designs, such as the MD5, SHA-1 and RIPEMD algorithms.... |
MD5 MD5 The MD5 Message-Digest Algorithm is a widely used cryptographic hash function that produces a 128-bit hash value. Specified in RFC 1321, MD5 has been employed in a wide variety of security applications, and is also commonly used to check data integrity... |
SHA-1 | SHA-256 | SHA-384 | SHA-512 | Michael MIC | RIPEMD-128 RIPEMD RIPEMD-160 is a 160-bit message digest algorithm developed in Leuven, Belgium, by Hans Dobbertin, Antoon Bosselaers and Bart Preneel at the COSIC research group at the Katholieke Universiteit Leuven, and first published in 1996... |
RIPEMD-160 RIPEMD RIPEMD-160 is a 160-bit message digest algorithm developed in Leuven, Belgium, by Hans Dobbertin, Antoon Bosselaers and Bart Preneel at the COSIC research group at the Katholieke Universiteit Leuven, and first published in 1996... |
RIPEMD-256 RIPEMD RIPEMD-160 is a 160-bit message digest algorithm developed in Leuven, Belgium, by Hans Dobbertin, Antoon Bosselaers and Bart Preneel at the COSIC research group at the Katholieke Universiteit Leuven, and first published in 1996... |
RIPEMD-320 RIPEMD RIPEMD-160 is a 160-bit message digest algorithm developed in Leuven, Belgium, by Hans Dobbertin, Antoon Bosselaers and Bart Preneel at the COSIC research group at the Katholieke Universiteit Leuven, and first published in 1996... |
Tiger | Whirlpool | HMAC HMAC In cryptography, HMAC is a specific construction for calculating a message authentication code involving a cryptographic hash function in combination with a secret key. As with any MAC, it may be used to simultaneously verify both the data integrity and the authenticity of a message... |
MDC2 | GOST | LASH-160 | LASH-256 | LASH-384 | LASH-512 |
Supported Bluetooth protocolsBluetooth protocolsBluetooth uses a variety of protocols. Core protocols are defined by the trade organization Bluetooth SIG. Additional protocols have been adopted from other standards bodies...
| Kernel name | CMTP | HIDP | HCRP | CAPI | PPP | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| FreeBSD kernel FreeBSD FreeBSD is a free Unix-like operating system descended from AT&T UNIX via BSD UNIX. Although for legal reasons FreeBSD cannot be called “UNIX”, as the direct descendant of BSD UNIX , FreeBSD’s internals and system APIs are UNIX-compliant... |
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| Linux | |||||||||||||||||
| Kernel name | ACL | SCO | LMP | HCI | L2CAP | BNEP | RFComm. | SDP | TCP | AVTCP | AVDTP | OBEX | CMTP | HIDP | HCRP | CAPI | PPP |
See also
- Comparison of open source operating systemsComparison of open source operating systemsThese tables compare the various free software / open source operating systems. Where not all of the non-EOL versions support a feature, the first version which support it is listed.- General information :- Supported architectures :- General :...
- Comparison of Linux distributionsComparison of Linux distributionsTechnical variations of Linux distributions include support for different hardware devices and systems or software package configurations. Organizational differences may be motivated by historical reasons...
- Comparison of BSD operating systemsComparison of BSD operating systemsThere are a number of Unix-like operating systems based on or descended from the Berkeley Software Distribution series of Unix variants. The three most notable descendants in current use are FreeBSD, OpenBSD, and NetBSD, which are all derived from 386BSD and 4.4BSD-Lite, by various routes...
- Comparison of Windows versions
- List of operating systems
- Comparison of file systemsComparison of file systems-General information:-Limits:-Metadata:-Features:-Allocation and layout policies:-Supporting operating systems:-See also:* Comparison of archive formats* Comparison of file archivers* List of archive formats* List of file archivers...
- Comparison of operating systemsComparison of operating systemsThese tables compare general and technical information for a number of widely used and currently available operating systems.Because of the large number and variety of available Linux distributions, they are all grouped under a single entry; see comparison of Linux distributions for a detailed...
- Operating system advocacyOperating system advocacyOperating system advocacy is the practice of attempting to increase the awareness and improve the perception of a computer operating system. The motivation behind this may be to increase the number of users of a system, to assert the superiority of one choice over another or out of brand loyalty,...
- XvsXPXvsXPMac vs Windows is an online operating system comparison wiki run by James Scariati and Michael Moriarty.-Overview:The site compares competing operating systems Windows Vista and Mac OS X v10.5 through over 100 different topics...