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  2. List of interface bit rates - Wikipedia

    en.wikipedia.org/wiki/List_of_interface_bit_rates

    The distinction can be arbitrary between a computer bus, often closer in space, and larger telecommunications networks. Many device interfaces or protocols (e.g., SATA, USB, SAS, PCIe) are used both inside many-device boxes, such as a PC, and one-device-boxes, such as a hard drive enclosure. Accordingly, this page lists both the internal ribbon ...

  3. Hard disk drive performance characteristics - Wikipedia

    en.wikipedia.org/wiki/Hard_disk_drive...

    The spindle motor speed can use one of two types of disk rotation methods: 1) constant linear velocity (CLV), used mainly in optical storage, varies the rotational speed of the optical disc depending upon the position of the head, and 2) constant angular velocity (CAV), used in HDDs, standard FDDs, a few optical disc systems, and vinyl audio ...

  4. Computer data storage - Wikipedia

    en.wikipedia.org/wiki/Computer_data_storage

    Off-line storage is computer data storage on a medium or a device that is not under the control of a processing unit. [9] The medium is recorded, usually in a secondary or tertiary storage device, and then physically removed or disconnected. It must be inserted or connected by a human operator before a computer can access it again.

  5. Computer memory - Wikipedia

    en.wikipedia.org/wiki/Computer_memory

    Historical lowest retail price of computer memory and storage Electromechanical memory used in the IBM 602, an early punch multiplying calculator Detail of the back of a section of ENIAC, showing vacuum tubes Williams tube used as memory in the IAS computer c. 1951 8 GB microSDHC card on top of 8 bytes of magnetic-core memory (1 core is 1 bit.)

  6. Parallel ATA - Wikipedia

    en.wikipedia.org/wiki/Parallel_ATA

    The Device 0 drive is the drive that usually appears "first" to the computer's BIOS and/or operating system. In most personal computers the drives are often designated as "C:" for the Device 0 and "D:" for the Device 1 referring to one active primary partitions on each.

  7. Storage Module Device - Wikipedia

    en.wikipedia.org/wiki/Storage_Module_Device

    CDC9762-smd-drive. Storage Module Device (SMD) is a family of storage devices (hard disk drives) that were first shipped by Control Data Corporation in December 1973 as the CDC 9760 40 MB (unformatted) storage module disk drive. [1]

  8. Hard disk drive - Wikipedia

    en.wikipedia.org/wiki/Hard_disk_drive

    The SAS is a new generation serial communication protocol for devices designed to allow for much higher speed data transfers and is compatible with SATA. SAS uses a mechanically compatible data and power connector to standard 3.5-inch SATA1/SATA2 HDDs, and many server-oriented SAS RAID controllers are also capable of addressing SATA HDDs.

  9. Zip drive - Wikipedia

    en.wikipedia.org/wiki/Zip_drive

    An internal Zip drive installed in a computer An internal Zip drive outside of a computer but attached to a 3 + 1 ⁄ 2-inch to 5 + 1 ⁄ 4-inch drive bay adapter The Zip disk media The back of a parallel-port ZIP-100 with printer pass-through