Sun-3
Encyclopedia
Sun-3 was the name given to a series of UNIX
Unix
Unix is a multitasking, multi-user computer operating system originally developed in 1969 by a group of AT&T employees at Bell Labs, including Ken Thompson, Dennis Ritchie, Brian Kernighan, Douglas McIlroy, and Joe Ossanna...

 computer workstations and server
Server (computing)
In the context of client-server architecture, a server is a computer program running to serve the requests of other programs, the "clients". Thus, the "server" performs some computational task on behalf of "clients"...

s produced by 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...

, launched on September 9th, 1985. The Sun-3 series were VMEbus
VMEbus
VMEbus is a computer bus standard, originally developed for the Motorola 68000 line of CPUs, but later widely used for many applications and standardized by the IEC as ANSI/IEEE 1014-1987. It is physically based on Eurocard sizes, mechanicals and connectors , but uses its own signalling system,...

-based systems similar to some of the earlier Sun-2
Sun-2
The Sun-2 series of UNIX workstations and servers was launched by Sun Microsystems in November 1983. As the name suggests, the Sun-2 represented the second generation of Sun systems, superseding the original Sun-1 series...

 series, but using the Motorola 68020
Motorola 68020
The Motorola 68020 is a 32-bit microprocessor from Motorola, released in 1984. It is the successor to the Motorola 68010 and is succeeded by the Motorola 68030...

 microprocessor
Microprocessor
A microprocessor incorporates the functions of a computer's central processing unit on a single integrated circuit, or at most a few integrated circuits. It is a multipurpose, programmable device that accepts digital data as input, processes it according to instructions stored in its memory, and...

, in combination with the Motorola 68881
Motorola 68881
The Motorola 68881 and Motorola 68882 were floating-point coprocessor chips that were used in some computer systems in conjunction with the 68020 or 68030 CPUs. The addition of one of these chips added substantial cost to the computer, but added a floating point unit that could rapidly perform...

 floating-point co-processor (optional on the Sun 3/50) and a proprietary Sun MMU. Sun-3 systems were supported in 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...

 versions 3.0 to 4.1.1_U1 and also have current support in 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,...

 and 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...

.

Sun-3 models

Models are listed in approximately chronological order.
Model Codename CPU board CPU MHz Max. RAM Chassis
3/75 Carrera Sun 3004 16.67 MHz 8 MB 2-slot VME (desktop)
3/140 Carrera Sun 3004 16.67 MHz 16 MB 3-slot VME (desktop/side)
3/160 Carrera Sun 3004 16.67 MHz 16 MB 12-slot VME (deskside)
3/180 Carrera Sun 3004 16.67 MHz 16 MB 12-slot VME (rackmount
19-inch rack
A 19-inch rack is a standardized frame or enclosure for mounting multiple equipment modules. Each module has a front panel that is wide, including edges or ears that protrude on each side which allow the module to be fastened to the rack frame with screws.-Overview and history:Equipment designed...

)
3/150 Carrera Sun 3004 16.67 MHz 16 MB 6-slot VME (deskside)
3/50 Model 25 - 15.7 MHz 4 MB "wide Pizza-box
Pizza box form factor
In computing, a pizza box is a style of case for computers or network switches. Cases of this type tend to be wide and flat, normally one or two rack units in height, thus resembling pizza delivery boxes....

" desktop
3/110 Prism - 16.67 MHz 12 MB 3-slot VME (desktop/side)
3/260 Sirius Sun 3200 25 MHz (CPU), 20 MHz (FPU) 32 MB 12-slot VME (deskside)
3/280 Sirius Sun 3200 25 MHz (CPU), 20 MHz (FPU) 32 MB 12-slot VME (rackmount)
3/60 Ferrari - 20 MHz 24 MB "wide Pizza-box" desktop
3/E Polaris Sun 3/E 20 MHz 16 MB none (6U VME board)


(Max. RAM sizes may be greater when third-party memory board were used).

Sun-3x

In 1989, coincident with the launch of the SPARCstation 1
SPARCstation 1
The SPARCstation 1, or Sun 4/60, is the first of the SPARCstation series of SPARC-based computer workstations sold by Sun Microsystems. It had a distinctive slim enclosure and was first sold in April 1989, with Sun's support for it ending in 1995.Based around a LSI Logic RISC CPU running at...

, Sun launched three new Sun-3 models, the 3/80, 3/470 and 3/480. Unlike previous Sun-3s, these used a Motorola 68030
Motorola 68030
The Motorola 68030 is a 32-bit microprocessor in Motorola's 68000 family. It was released in 1987. The 68030 was the successor to the Motorola 68020, and was followed by the Motorola 68040. In keeping with general Motorola naming, this CPU is often referred to as the 030 .The 68030 features on-chip...

processor, 68882 floating-point unit, and the 68030's integral MMU. This 68030-based architecture was called Sun-3x.
Model Codename CPU board CPU MHz Max. RAM Chassis
3/80 Hydra - 20 MHz 16, 40 or 64 MB "Pizza-box" desktop
3/460 Pegasus Sun 3400 33 MHz 128 MB 12-slot VME (deskside, older design)
3/470 Pegasus Sun 3400 33 MHz 128 MB 12-slot VME (deskside, newer design )
3/480 Pegasus Sun 3400 33 MHz 128 MB 12-slot VME (rackmount)


Sun 3/260s upgraded with Sun 3400 CPU boards were known as Sun 3/460s.

External links

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