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  2. Solid-state drive - Wikipedia

    en.wikipedia.org/wiki/Solid-state_drive

    A solid-state drive (SSD) is a type of solid-state storage device that uses integrated circuits to store data persistently. It is sometimes called semiconductor storage device, solid-state device, or solid-state disk. [1] [2] SSDs rely on non-volatile memory, typically NAND flash, to store data in memory cells. The performance and endurance of ...

  3. File size - Wikipedia

    en.wikipedia.org/wiki/File_size

    File size is a measure of how much data a computer file contains or how much storage space it is allocated. Typically, file size is expressed in units based on byte. A large value is often expressed with a metric prefix (as in megabyte and gigabyte) or a binary prefix (as in mebibyte and gibibyte). [1]

  4. USB flash drive - Wikipedia

    en.wikipedia.org/wiki/USB_flash_drive

    A SanDisk Cruzer USB drive from 2011, with 4 GB of storage capacity A SanDisk Ultra Flair USB drive from 2020, attached to an HP laptop Transcend JetFlash from 2014 SanDisk 1 TB USB-C flash drive (2020 model) next to a 50 cent euro coin

  5. Comparison of memory cards - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_memory_cards

    512 GB [3] Subcompact (12.3 mm × 8.8 mm × 0.7) smallest dimensions as of 2024. Can use Nano-SIM slots. Secure Digital: SanDisk, Panasonic, Toshiba, Kodak, SD Association: SD: 1999 2 GB [4] Small (32 mm × 24 mm × 2.1 mm), DRM, up to 2 GB. [4] (2 GB cards use larger block sizes and may not be compatible with some host devices. See Article) miniSD

  6. Disk sector - Wikipedia

    en.wikipedia.org/wiki/Disk_sector

    In computer disk storage, a sector is a subdivision of a track on a magnetic disk or optical disc. For most disks, each sector stores a fixed amount of user-accessible data, traditionally 512 bytes for hard disk drives (HDDs), and 2048 bytes for CD-ROMs , DVD-ROMs and BD-ROMs . [ 1 ]

  7. Gigabyte - Wikipedia

    en.wikipedia.org/wiki/Gigabyte

    The gigabyte (/ ˈ ɡ ɪ ɡ ə b aɪ t, ˈ dʒ ɪ ɡ ə b aɪ t /) [1] is a multiple of the unit byte for digital information. The prefix giga means 10 9 in the International System of Units (SI). ). Therefore, one gigabyte is one billion by