• Density is a measure of the quantity of information bits that can be stored on a given physical space of a computer storage medium. There are three types...
    17 KB (2,219 words) - 11:12, 11 April 2025
  • Thumbnail for Data storage
    is sometimes called digital data. Computer data storage is one of the core functions of a general-purpose computer. Electronic documents can be stored...
    10 KB (1,202 words) - 13:06, 4 June 2025
  • Thumbnail for Computer memory
    storing opened programs and data being actively processed, computer memory serves as a mass storage cache and write buffer to improve both reading and writing...
    29 KB (3,284 words) - 22:21, 18 April 2025
  • Initially, magnetic tape for data storage was wound on 10.5-inch (27 cm) reels. This standard for large computer systems persisted through the late 1980s...
    36 KB (4,288 words) - 23:35, 23 February 2025
  • Thumbnail for Read-only memory
    its data even after the computer is switched off. IBM used capacitor read-only storage (CROS) and transformer read-only storage (TROS) to store microcode...
    50 KB (5,727 words) - 18:18, 25 May 2025
  • Thumbnail for Blade server
    basic services to computer devices, other types of devices can also utilize blade enclosures. Blades providing switching, routing, storage, SAN and fibre-channel...
    22 KB (2,607 words) - 18:09, 31 March 2025
  • Thumbnail for Disk storage
    disk storage device was the IBM 350 which shipped in 1956 as a part of the IBM 305 RAMAC computing system. The random-access, low-density storage of disks...
    14 KB (1,375 words) - 22:51, 18 April 2025
  • 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 (1,929 words) - 22:07, 24 May 2025
  • Thumbnail for Hard disk drive
    introduced by IBM in 1956, and were the dominant secondary storage device for general-purpose computers beginning in the early 1960s. HDDs maintained this position...
    139 KB (14,137 words) - 13:33, 15 June 2025
  • Thumbnail for 5D optical data storage
    5D optical data storage (also branded as Superman memory crystal, a reference to the Kryptonian memory crystals from the Superman franchise) is an experimental...
    14 KB (1,294 words) - 16:28, 9 June 2025
  • Population density, population per unit land area Urban density, in urban planning and urban design Areal density (computer storage), bits (how computers store...
    4 KB (495 words) - 02:52, 16 October 2023
  • Thumbnail for Magnetic-core memory
    loop of certain magnetic materials as a storage or switching device was known from the earliest days of computer development. Much of this knowledge had...
    41 KB (5,528 words) - 06:31, 13 June 2025
  • magnetic and optical recording of disks Magnetic tape data storage Computer storage density List of device bandwidths Solid-state drive RAM disk RAID E...
    11 KB (1,235 words) - 07:54, 25 May 2025
  • Thumbnail for Optical storage
    spinning optical disc. An older example of optical storage that does not require the use of computers, is microform. There are other means of optically...
    15 KB (1,886 words) - 16:40, 24 April 2025
  • has several uses including as primary storage. In addition to usually being faster than forms of mass storage such as a hard disk drive, volatility can...
    2 KB (295 words) - 21:00, 23 October 2023
  • Thumbnail for Floppy disk
    especially with legacy industrial computer equipment, they have been superseded by data storage methods with much greater data storage capacity and data transfer...
    82 KB (8,908 words) - 18:28, 23 May 2025
  • Thumbnail for Random-access memory
    magnetic cores". Computer History Museum. Retrieved 19 June 2019. "1966: Semiconductor RAMs Serve High-speed Storage Needs". Computer History Museum. Retrieved...
    58 KB (5,812 words) - 21:59, 11 June 2025
  • Thumbnail for Computer data storage
    Computer data storage or digital data storage is a technology consisting of computer components and recording media that are used to retain digital data...
    57 KB (6,541 words) - 01:42, 18 June 2025
  • Thumbnail for Static random-access memory
    personal computers such as the ZX80, TRS-80 Model 100, and VIC-20. Some early memory cards in the late 1980s to early 1990s used SRAM as a storage medium...
    27 KB (3,295 words) - 06:45, 27 May 2025
  • once an important form of computer data storage as both paper tape and punch cards were a common staple of working with computers before the 1980s. Before...
    6 KB (690 words) - 13:19, 5 April 2025
  • Thumbnail for Solid-state drive
    of solid-state storage device that uses integrated circuits to store data persistently. It is sometimes called semiconductor storage device, solid-state...
    127 KB (11,158 words) - 14:35, 14 June 2025
  • Thumbnail for Disk density
    Disk density is a capacity designation on magnetic storage, usually floppy disks. Each designation describes a set of characteristics that can affect...
    12 KB (837 words) - 10:52, 18 May 2025
  • Thumbnail for Ferroelectric RAM
    temperatures). Marked disadvantages of FeRAM are much lower storage densities than flash devices, storage capacity limitations and higher cost. Like DRAM, FeRAM's...
    27 KB (3,212 words) - 23:19, 11 June 2025
  • Thumbnail for Drum memory
    Drum memory (redirect from Drum storage)
    magnetic data storage device invented by Gustav Tauschek in 1932 in Austria. Drums were widely used in the 1950s and into the 1960s as computer memory. Many...
    10 KB (1,234 words) - 22:29, 24 September 2024
  • Thumbnail for Memory hierarchy
    In computer architecture, the memory hierarchy separates computer storage into a hierarchy based on response time. Since response time, complexity, and...
    12 KB (1,204 words) - 23:21, 8 March 2025
  • Semiconductor memory (category Computer memory)
    digital electronic semiconductor device used for digital data storage, such as computer memory. It typically refers to devices in which data is stored...
    36 KB (3,551 words) - 15:24, 11 February 2025
  • Thumbnail for Content-addressable memory
    type of computer memory used in certain very-high-speed searching applications. It is also known as associative memory or associative storage and compares...
    14 KB (1,603 words) - 21:01, 25 May 2025
  • Thumbnail for Core rope memory
    Core rope memory (category Computer memory)
    program and data storage in that era. It was later used in the 1960s by early NASA Mars space probes and then in the Apollo Guidance Computer (AGC), which...
    7 KB (698 words) - 17:15, 21 September 2024
  • Thumbnail for DDR SDRAM
    greater power efficiency. Fully Buffered DIMM ECC memory, a type of computer data storage List of interface bit rates Serial presence detect "Samsung 30 nm...
    26 KB (2,512 words) - 19:16, 17 June 2025
  • Thumbnail for USB flash drive
    circumstances (shelf storage time). Common uses of USB flash drives are for storage, supplementary back-ups, and transferring of computer files. Compared with...
    83 KB (9,239 words) - 18:12, 10 May 2025