• paging or swapping. Computer memory is divided into pages so that information can be found more quickly. The concept is named by analogy to the pages...
    21 KB (2,081 words) - 02:12, 9 May 2024
  • In computer operating systems, memory paging (or swapping on some Unix-like systems) is a memory management scheme by which a computer stores and retrieves...
    42 KB (5,362 words) - 04:29, 7 March 2024
  • Thumbnail for Computer memory
    Computer memory stores information, such as data and programs, for immediate use in the computer. The term memory is often synonymous with the terms RAM...
    29 KB (3,270 words) - 20:53, 30 March 2024
  • Thumbnail for Virtual memory
    users of a very large (main) memory". The computer's operating system, using a combination of hardware and software, maps memory addresses used by a program...
    38 KB (4,698 words) - 00:24, 17 January 2024
  • In computer science, thrashing occurs in a system with virtual memory when a computer's real storage resources are overcommitted, leading to a constant...
    11 KB (1,548 words) - 05:18, 16 April 2024
  • Thumbnail for Random-access memory
    Random-access memory (RAM; /ræm/) is a form of electronic computer memory that can be read and changed in any order, typically used to store working data...
    57 KB (5,731 words) - 15:02, 30 April 2024
  • Thumbnail for Memory management unit
    A memory management unit (MMU), sometimes called paged memory management unit (PMMU), is a computer hardware unit that examines all memory references on...
    45 KB (6,668 words) - 19:44, 3 May 2024
  • Thumbnail for Page table
    A page table is a data structure used by a virtual memory system in a computer to store mappings between virtual addresses and physical addresses. Virtual...
    17 KB (2,462 words) - 05:36, 5 January 2024
  • Valley Page (computer memory), a block of virtual memory Paging, a method of data retrieval Bank switching, sometimes known as paging Electronic page, formatting...
    4 KB (576 words) - 14:09, 5 December 2023
  • Thumbnail for Computer data storage
    the CPU and memory, while the latter performs arithmetic and logical operations on data. Without a significant amount of memory, a computer would merely...
    57 KB (6,487 words) - 01:43, 24 April 2024
  • In a computer operating system that uses paging for virtual memory management, page replacement algorithms decide which memory pages to page out, sometimes...
    47 KB (6,235 words) - 16:15, 7 January 2024
  • Non-volatile memory (NVM) or non-volatile storage is a type of computer memory that can retain stored information even after power is removed. In contrast...
    18 KB (1,919 words) - 01:43, 24 April 2024
  • Thumbnail for Dynamic random-access memory
    the main memory (colloquially called the "RAM") in modern computers and graphics cards (where the "main memory" is called the graphics memory). It is also...
    88 KB (10,632 words) - 05:58, 19 March 2024
  • Thumbnail for Memory management
    Memory management is a form of resource management applied to computer memory. The essential requirement of memory management is to provide ways to dynamically...
    23 KB (2,676 words) - 02:12, 9 May 2024
  • Thumbnail for Core rope memory
    Core rope memory is a form of read-only memory (ROM) for computers. It was used in the UNIVAC I (Universal Automatic Computer I) and the UNIVAC II, developed...
    7 KB (691 words) - 22:57, 14 April 2024
  • Semiconductor memory is a digital electronic semiconductor device used for digital data storage, such as computer memory. It typically refers to devices...
    36 KB (3,551 words) - 19:50, 27 December 2023
  • Thumbnail for Memory hierarchy
    In computer organisation, the memory hierarchy separates computer storage into a hierarchy based on response time. Since response time, complexity, and...
    12 KB (1,181 words) - 04:14, 17 January 2024
  • Thumbnail for Shared memory
    In computer science, shared memory is memory that may be simultaneously accessed by multiple programs with an intent to provide communication among them...
    11 KB (1,301 words) - 20:18, 29 November 2023
  • Thumbnail for Memory address
    the memory like an array endorsed by various programming languages. A digital computer's main memory consists of many memory locations. Each memory location...
    12 KB (1,494 words) - 18:18, 27 September 2023
  • Thumbnail for Drum memory
    1960s as computer memory. Many early computers, called drum computers or drum machines, used drum memory as the main working memory of the computer. Some...
    10 KB (1,226 words) - 11:49, 15 April 2024
  • a page fault (sometimes called PF or hard fault) is an exception that the memory management unit (MMU) raises when a process accesses a memory page without...
    8 KB (1,179 words) - 12:35, 13 January 2024
  • Thumbnail for Computer
    form of a microprocessor, together with some type of computer memory, typically semiconductor memory chips. The processing element carries out arithmetic...
    138 KB (13,933 words) - 02:20, 4 May 2024
  • Thumbnail for Pointer (computer programming)
    that stores a memory address. This can be that of another value located in computer memory, or in some cases, that of memory-mapped computer hardware. A...
    73 KB (9,779 words) - 00:57, 7 May 2024
  • In computer operating systems, demand paging (as opposed to anticipatory paging) is a method of virtual memory management. In a system that uses demand...
    4 KB (532 words) - 21:51, 8 May 2024
  • Memory segmentation is an operating system memory management technique of dividing a computer's primary memory into segments or sections. In a computer...
    17 KB (2,134 words) - 04:30, 15 April 2024
  • Thumbnail for Apollo Guidance Computer
    using more gates. The computer had 2,048 words of erasable magnetic-core memory and 36,864 words of read-only core rope memory.: 27, 90–93  Both had cycle...
    57 KB (6,896 words) - 02:06, 11 April 2024
  • Volatile memory, in contrast to non-volatile memory, is computer memory that requires power to maintain the stored information; it retains its contents...
    2 KB (295 words) - 21:00, 23 October 2023
  • Memory protection is a way to control memory access rights on a computer, and is a part of most modern instruction set architectures and operating systems...
    18 KB (2,273 words) - 11:11, 19 March 2024
  • Thumbnail for Memory module
    in electronic systems, especially computers such as personal computers, workstations, and servers. The first memory modules were proprietary designs that...
    7 KB (767 words) - 03:46, 23 April 2024
  • A stored-program computer is a computer that stores program instructions in electronically or optically accessible memory. This contrasts with systems...
    16 KB (1,675 words) - 15:12, 1 March 2024