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  2. Computer hardware - Wikipedia

    en.wikipedia.org/wiki/Computer_hardware

    By contrast, software is the set of instructions that can be stored and run by hardware. Hardware is so-termed because it is hard or rigid with respect to changes, whereas software is soft because it is easy to change. Hardware is typically directed by the software to execute any command or instruction.

  3. Hard disk drive - Wikipedia

    en.wikipedia.org/wiki/Hard_disk_drive

    In development. Historical. v. t. e. A hard disk drive (HDD), hard disk, hard drive, or fixed disk[ a ] is an electro-mechanical data storage device that stores and retrieves digital data using magnetic storage with one or more rigid rapidly rotating platters coated with magnetic material.

  4. Hard disk drive failure - Wikipedia

    en.wikipedia.org/wiki/Hard_disk_drive_failure

    A hard disk drive failure occurs when a hard disk drive malfunctions and the stored information cannot be accessed with a properly configured computer. A hard disk failure may occur in the course of normal operation, or due to an external factor such as exposure to fire or water or high magnetic fields, or suffering a sharp impact or ...

  5. Computer case screws - Wikipedia

    en.wikipedia.org/wiki/Computer_case_screws

    Computer case screws. From left to right: a #6-32 UNC thumbscrew, a #6-32 UNC screw, an M3 screw and a self-tapping screw for case fans. Computer case screws are the hardware used to secure parts of a PC to the case. Although there are numerous manufacturers of computer cases, they have generally used three thread sizes.

  6. Computer data storage - Wikipedia

    en.wikipedia.org/wiki/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. It is a core function and fundamental component of computers. [1]: 15–16. The central processing unit (CPU) of a computer is what manipulates data by performing computations.

  7. History of hard disk drives - Wikipedia

    en.wikipedia.org/wiki/History_of_hard_disk_drives

    History of hard disk drives. Historical lowest retail price of computer memory and storage. In 1953, IBM recognized the immediate application for what it termed a "Random Access File" having high capacity and rapid random access at a relatively low cost. [1] After considering technologies such as wire matrices, rod arrays, drums, drum arrays ...

  8. List of disk drive form factors - Wikipedia

    en.wikipedia.org/wiki/List_of_disk_drive_form...

    5.75 in × 3.25 in × 8 in (146.1 mm × 82.55 mm × 203 mm). This smaller form factor, first used in an HDD by Seagate in 1980, was the same size as full-height 51⁄4 -inch-diameter (130 mm) FDD, 3.25-inches high. This is twice as high as "half height"; i.e., 1.63 in (41.4 mm). Most desktop models of drives for optical 120 mm disks (DVD, CD ...

  9. Computer repair technician - Wikipedia

    en.wikipedia.org/wiki/Computer_repair_technician

    Tagged repairs in process can be seen on lower shelves at left, and service parts in labeled boxes seen above them. A computer repair technician is a person who repairs and maintains computers and servers. The technician 's responsibilities may extend to include building or configuring new hardware, installing and updating software packages ...