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  2. Computer data storage - Wikipedia

    en.wikipedia.org/wiki/Computer_data_storage

    Tertiary storage or tertiary memory [7] is a level below secondary storage. Typically, it involves a robotic mechanism which will mount (insert) and dismount removable mass storage media into a storage device according to the system's demands; such data are often copied to secondary storage before use. It is primarily used for archiving rarely ...

  3. Single-level store - Wikipedia

    en.wikipedia.org/wiki/Single-level_store

    Single-level storage (SLS) or single-level memory is a computer storage term which has had two meanings. The two meanings are related in that in both, pages of memory may be in primary storage or in secondary storage (disk), and that the physical location of a page is unimportant to a process.

  4. Hard disk drive - Wikipedia

    en.wikipedia.org/wiki/Hard_disk_drive

    Memory map; Secondary storage; MOS memory ... (also called "reserve ... because typically has one internal platter and were 2.5" or 1.8" physical size instead of more ...

  5. Drum memory - Wikipedia

    en.wikipedia.org/wiki/Drum_memory

    [1] [2] Drums were widely used in the 1950s and into the 1960s as computer memory. Many early computers, called drum computers or drum machines, used drum memory as the main working memory of the computer. [3] Some drums were also used as secondary storage as for example various IBM drum storage drives and the UNIVAC FASTRAND series of drums.

  6. Memory paging - Wikipedia

    en.wikipedia.org/wiki/Memory_paging

    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 data from secondary storage [a] for use in main memory. [1] In this scheme, the operating system retrieves data from secondary storage in same-size blocks called pages.

  7. Glossary of computer science - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_computer_science

    memory Computer data storage, often called storage, is a technology consisting of computer components and recording media that are used to retain digital data. It is a core function and fundamental component of computers. [62]: 15–16 merge sort. Also mergesort. An efficient, general-purpose, comparison-based sorting algorithm.

  8. RAM drive - Wikipedia

    en.wikipedia.org/wiki/RAM_drive

    A RAM drive (also called a RAM disk) is a block of random-access memory (primary storage or volatile memory) that a computer's software is treating as if the memory were a disk drive (secondary storage).

  9. Random-access memory - Wikipedia

    en.wikipedia.org/wiki/Random-access_memory

    The memory cell is the fundamental building block of computer memory. The memory cell is an electronic circuit that stores one bit of binary information and it must be set to store a logic 1 (high voltage level) and reset to store a logic 0 (low voltage level). Its value is maintained/stored until it is changed by the set/reset process.