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  2. Data storage - Wikipedia

    en.wikipedia.org/wiki/Data_storage

    Data storage is the recording (storing) of information in a storage medium. Handwriting , phonographic recording, magnetic tape , and optical discs are all examples of storage media. Biological molecules such as RNA and DNA are considered by some as data storage.

  3. Computer data storage - Wikipedia

    en.wikipedia.org/wiki/Computer_data_storage

    The total amount of stored information that a storage device or medium can hold. It is expressed as a quantity of bits or bytes (e.g. 10.4 megabytes). Memory storage density The compactness of stored information. It is the storage capacity of a medium divided with a unit of length, area or volume (e.g. 1.2 megabytes per square inch).

  4. Storage device - Wikipedia

    en.wikipedia.org/wiki/Storage_device

    Storage device may refer to: Box , or any of a variety of containers or receptacles... Data storage device , a device for recording information, which could range from handwriting to video or acoustic recording, or to electromagnetic energy modulating magnetic tape and optical discs

  5. Disk storage - Wikipedia

    en.wikipedia.org/wiki/Disk_storage

    Disk storage (also sometimes called drive storage) is a data storage mechanism based on a rotating disk. The recording employs various electronic, magnetic, optical, or mechanical changes to the disk's surface layer. A disk drive is a device implementing such a storage mechanism.

  6. Hard disk drive - Wikipedia

    en.wikipedia.org/wiki/Hard_disk_drive

    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.

  7. Units of information - Wikipedia

    en.wikipedia.org/wiki/Units_of_information

    In digital computing, a unit of information is used to describe the capacity of a digital data storage device. In telecommunications, a unit of information is used to describe the throughput of a communication channel. In information theory, a unit of information is used to measure information contained in messages and the entropy of random ...

  8. Computer hardware - Wikipedia

    en.wikipedia.org/wiki/Computer_hardware

    The storage of computer programs is key to the operation of modern computers and is the connection between computer hardware and software. [7] Even prior to this, in the mid-19th century mathematician George Boole invented Boolean algebra —a system of logic where each proposition is either true or false.

  9. USB flash drive - Wikipedia

    en.wikipedia.org/wiki/USB_flash_drive

    Flash drives implement the USB mass storage device class so that most modern operating systems can read and write to them without installing device drivers. The flash drives present a simple block-structured logical unit to the host operating system, hiding the individual complex implementation details of the various underlying flash memory ...