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  • Physically similar to a CD, a single-layer, single-sided DVD has a maximum capacity of 4.7GB (about two hours of MPEG-2 video), about seven times the capacity of a CD-ROM (a normal CD holds around 650MB).

storage devices storage devices Presentation Transcript

  • Storage Devices
    Momina
  • What is a storage Device?
    A storage device is a device used for storing something.
  • Types of Storage Devices
    Optical
    Eg.
    BLU Ray
    Compact Disks – CD-ROMS ; CD-R; or CD-RW
    DVD’s
    Magnetic
    Eg
    Hard Disks
    Magnetic tape
    Floppy
    Solid State
    Eg.
    External Hard Disks
    Camera Card
    USB’s
  • Optical Storage Devices
    Uses A Precise laser Beam
  • BLU Ray
    Panasonic, Pioneer, Philips, Samsung, Sharp, Sony, TDK and Thomson). The format was developed to enable recording, rewriting and playback of high-definition video (HD), as well as storing large amounts of data.
  • Compacts Discs
    A Compact Disc (also known as a CD) is an optical disc used to store digital data.
  • DVD’s
    A DVD is a larger, faster CD that can hold video, audio, and/or computer data.
  • Magnetic Storage
    Uses a Magnet Medium
  • Hard Disks
    The hard disk drive is the main, and usually largest, data storage device in a computer.
    It is inside the computer
  • Magnetic Tape
    Magnetic tape is an external storage device that can be used for making copies of audio, video, and data.
  • Floppy
    A floppy disk is a data storage medium that is composed of a disk of thin, it is in a square or rectangular plastic shell.
    It cannot contain as much data a CD or DVD or a Hard disk
  • Solid State Storage Devices
    Uses electronic circuits that retain the values without any power source
  • External Hard Drive
    An external hard disk drive is a type of hard disk drive which is connected from the outside to a computer
    An external hard disk drive is a type of hard disk drive which is externally connected to a computer
  • Camera Card (SD Cards)
    They look like tiny pieces of plastic with 5 metal contacts and will come in capacities ranging from 128mb to 8 gb.
  • USB’s
    A USB flash drive consists of flash memorydata storage device integrated with a USB (Universal Serial Bus) 1.1 or 2.0 interface. USB flash drives are typically removable and rewritable, much smaller than a floppy disk, and most weigh less than 1 ounce
  • Did you get it?
    I know confusing inst it?
    Don’t worry I didn’t get it Either
    THANK YOU AND GOOD NIGHT