In computing, virtual memory, or virtual storage, is a memory management technique that provides an "idealized abstraction of the storage resources that...
38 KB (4,698 words) - 00:24, 17 January 2024
In computer science, memory virtualization decouples volatile random access memory (RAM) resources from individual systems in the data center, and then...
9 KB (941 words) - 15:33, 17 July 2024
of virtual memory implementations in modern operating systems, using secondary storage to let programs exceed the size of available physical memory. For...
42 KB (5,333 words) - 09:10, 26 August 2024
other virtual memory operating systems. When a new application on a 32-bit OS is executed, the process has a 4 GiB VAS: each one of the memory addresses...
7 KB (739 words) - 17:42, 10 June 2024
evolves virtual memory for purposes of virtualization, new systems of memory overcommitment may be applied to manage memory sharing among multiple virtual machines...
32 KB (3,483 words) - 11:19, 14 August 2024
Operating system (section Virtual memory)
for example, virtual memory can provide a program with the illusion of nearly unlimited memory that exceeds the computer's actual memory. Operating systems...
72 KB (8,248 words) - 20:48, 9 August 2024
devised that increase the effectiveness of memory management. Virtual memory systems separate the memory addresses used by a process from actual physical...
23 KB (2,711 words) - 12:42, 15 July 2024
A page, memory page, or virtual page is a fixed-length contiguous block of virtual memory, described by a single entry in a page table. It is the smallest...
21 KB (2,081 words) - 21:01, 5 August 2024
the computer memory can be transferred to storage; a common way of doing this is through a memory management technique called virtual memory. Modern computer...
29 KB (3,274 words) - 23:13, 26 August 2024
introduction of virtual memory most application programs do not have a knowledge of physical addresses. Rather, they address logical addresses, or virtual addresses...
15 KB (1,797 words) - 15:56, 25 August 2024
Virtual memory compression (also referred to as RAM compression and memory compression) is a memory management technique that utilizes data compression...
24 KB (2,666 words) - 20:27, 25 August 2024
pages of [virtual] memory. To implement memory ballooning, the virtual machine's kernel implements a "balloon driver" that allocates unused memory within...
2 KB (241 words) - 01:01, 9 May 2024
CPU-visible virtual addresses to physical addresses, the IOMMU maps device-visible virtual addresses (also called device addresses or memory mapped I/O...
12 KB (1,307 words) - 20:17, 25 August 2024
references on the memory bus, translating these requests, known as virtual memory addresses, into physical addresses in main memory. In modern systems...
45 KB (6,718 words) - 20:20, 25 August 2024
same signature Virtual machine, the virtualization of a computer system Virtual meeting, or web conferencing Virtual memory, a memory management technique...
2 KB (265 words) - 14:25, 10 January 2023
architectures Memory Memory virtualization: aggregating random-access memory (RAM) resources from networked systems into a single memory pool Virtual memory: giving...
36 KB (4,111 words) - 14:47, 27 August 2024
the computer's physical memory, or be flagged as being protected. Virtual memory makes it possible to have a linear virtual memory address space and to use...
18 KB (2,273 words) - 11:11, 19 March 2024
primary memory into fixed-size units called page frames, and the program's virtual address space into pages of the same size. The hardware memory management...
11 KB (1,380 words) - 20:05, 17 June 2024
IBM System/370 Model 155 (section Virtual memory)
the IBM System/370 line of computers. Since none of them came with virtual memory, "which was to be a hallmark of the 370 line", some said about these...
7 KB (668 words) - 09:09, 12 May 2024
main memory, and for performance to return to normal. When all the memory on a system is exhausted (whether there is virtual memory or only main memory, such...
19 KB (2,718 words) - 06:28, 1 June 2024
Virtual memory T cells (TVM) are a subtype of T lymphocytes. These are cells that have a memory phenotype but have not been exposed to a foreign antigen...
7 KB (844 words) - 21:06, 21 November 2023
general memory hierarchy structuring. Many other structures are useful. For example, a paging algorithm may be considered as a level for virtual memory when...
12 KB (1,181 words) - 06:01, 3 July 2024
Page table (category Virtual memory)
structure used by a virtual memory system in a computer to store mappings between virtual addresses and physical addresses. Virtual addresses are used...
17 KB (2,462 words) - 05:36, 5 January 2024
IBM System/370 Model 165 (section Virtual memory)
the IBM System/370 line of computers. Since none of them came with virtual memory, "which was to be a hallmark of the 370 line", some said about these...
9 KB (873 words) - 17:17, 13 May 2024
C dynamic memory allocation refers to performing manual memory management for dynamic memory allocation in the C programming language via a group of functions...
35 KB (4,126 words) - 13:51, 7 April 2024
operating systems, but have no support for virtual memory or memory protection. Operating systems that use virtual memory require more time for context switching...
26 KB (2,924 words) - 05:40, 12 July 2024
OpenVMS (redirect from Virtual Memory System)
often referred to as just VMS, is a multi-user, multiprocessing and virtual memory-based operating system. It is designed to support time-sharing, batch...
102 KB (9,045 words) - 20:01, 10 August 2024
systems have a memory hierarchy consisting of processor registers, on-die SRAM caches, external caches, DRAM, paging systems and virtual memory or swap space...
57 KB (5,721 words) - 15:52, 26 August 2024
Hypervisor (redirect from Virtual machine monitor)
without the virtual memory feature needed for virtualization, but added it in the August 1972 Advanced Function announcement. Virtualization has been featured...
24 KB (2,934 words) - 18:45, 27 August 2024
Presence of this population in humans is currently under investigation. Virtual memory T cell (TVM): As of now, the only function apparent in TVM cells is...
32 KB (3,781 words) - 12:49, 26 April 2024