Images

Storage Devices

By hoangvuong

  • Punched Card

    Punched Card
    The punch card was basically a pre-historic memory card. It was first used in textile factories to control looms. With the holes that were punched in specific spots, the machine was told what patterns to create. More information

  • Magnetic Tape

    Magnetic Tape
    Magnetic tape is a long and narrow strip of plastic that thin magnetic material is coated on. Nearly all recording tape is of this type, whether used for recording audio or video or computer data storage. More information

  • HARD DISK

    HARD DISK
    A hard disk drive (HDD)[note 2] is a data storage device used for storing and retrieving digital information using rapidly rotating disks (platters) coated with magnetic material. An HDD retains its data even when powered off. Data is read in a random-access manner, meaning individual blocks of data can be stored or retrieved in any order rather than sequentially. More information

  • The Floppy Disk

    The Floppy Disk
    A floppy disk, or diskette, is a disk storage medium composed of a disk of thin and flexible magnetic storage medium, sealed in a rectangular plastic carrier lined with fabric that removes dust particles. They are read and written by a floppy disk drive (FDD).
    More information

  • Compact disc

    Compact disc
    Compact disc, or CD for short, is a digital optical disc data storage format. The format was originally developed to store and play back sound recordings only (CD-DA), but was later adapted for storage of data (CD-ROM). More information

  • Optical disc

    Optical disc
    James T. Russel invented the optical digital television recording and playback television in 1970; however, nobody took to his invention. In 1975, Philips representatives visited Russel at his lab. They paid Russel millions for him to develop the compact disc (CD). In 1980, Russel completed the project and presented it to Sony. A standard Blu-ray disc can hold about 25 GB of data, a DVD about 4.7 GB, and a CD about 700 MB. <a href='http://en.wikipedia.org/wiki/Optical_disc' >More information</a

  • CD-R

    CD-R
    A CD-R (Compact Disc-Recordable) is a variation of the compact disc invented by Philips and Sony. CD-R is a Write Once Read Many (WORM) optical medium, although the whole disk does not have to be entirely written in the same session.
    More information

  • Zip Drives

    Zip Drives
    The Zip drive is a medium-capacity removable disk storage system that was introduced by Iomega in late 1994. Originally, Zip disks launched with capacities of 100 MB, but later versions increased this to first 250 MB and then 750 MB. More information

  • USB

    USB
    A USB flash drive is a data storage device that includes flash memory with an integrated Universal Serial Bus (USB) interface. USB flash drives are typically removable and rewritable, and physically much smaller than an optical disc. More information

  • SD Cards

    SD Cards
    SD cards are a portable memory card originally produced by SanDisk and Toshiba. They can hold up to 32 MB of storage. When introduced, it gained popularity in handheld devices. They are thin as quarters, and have evolved to no longer be restricted by the physical size of the device. More information

  • Cloud storage

    Cloud storage
    Cloud storage is a model of networked enterprise storage where data is stored not only in the user's computer, but in virtualized pools of storage which are generally hosted by third parties, too.Hosting companies operate large data centers, and people who require their data to be hosted buy or lease storage capacity from them. More information