Virtual address
Encyclopedia
In computer
technology, a virtual address is an address identifying a virtual, i.e. non-physical, entity.
or, in networking, when referring to a virtual network address. Virtual memory may be simulated by a hard disk, allowing an application to operate as though the computer has more physical memory than actually installed.
Address generated by the CPU is called the Logical address(Virtual Address) and it is mapped to the virtual address space. Generally Virtual address space is more when compared to the Main Memory address space.
Computer
A computer is a programmable machine designed to sequentially and automatically carry out a sequence of arithmetic or logical operations. The particular sequence of operations can be changed readily, allowing the computer to solve more than one kind of problem...
technology, a virtual address is an address identifying a virtual, i.e. non-physical, entity.
Description
The term virtual address is most commonly used for an address pointing to virtual memoryVirtual memory
In computing, virtual memory is a memory management technique developed for multitasking kernels. This technique virtualizes a computer architecture's various forms of computer data storage , allowing a program to be designed as though there is only one kind of memory, "virtual" memory, which...
or, in networking, when referring to a virtual network address. Virtual memory may be simulated by a hard disk, allowing an application to operate as though the computer has more physical memory than actually installed.
Address generated by the CPU is called the Logical address(Virtual Address) and it is mapped to the virtual address space. Generally Virtual address space is more when compared to the Main Memory address space.
See also
- Page tablePage tableA page table is the data structure used by a virtual memory system in a computer operating system to store the mapping between virtual addresses and physical addresses. Virtual addresses are those unique to the accessing process...
- Physical addressPhysical addressIn computing, a physical address, also real address, or binary address, is the memory address that is represented in the form of a binary number on the address bus circuitry in order to enable the data bus to access a particular storage cell of main memory.In a computer with virtual memory, the...
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