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Monday, May 9, 2011

Storage Device of Computer


Types of computer Storage Devices
          Tape
          Backup
          Sequential access
          Direct access
          PC Card
          Miniature mobile storage media
          Card reader
          Smart card
          E-money
          Microfilm
          Microfiche
          What is Tape?
          Magnetically coated plastic ribbon capable of storing large amounts of data at low cost
          Primarily used for backup
          How is data stored on a tape?
  • •       Sequential access
  •           Reads and writes data consecutively, like music tape
  •           Unlike Direct access – used on floppy disks, Zip disks, hard disks, CDs and DVDs – which can  
  •       locate particular item immediately    


          What is a PC Card?
          Adds capabilities to computer
          Credit-card sized device commonly used in notebook computers

          What is miniature mobile storage media?
          Storage for small mobile devices

          What are common types of miniature mobile storage media?



          What is a card reader?
          Reads information stored on miniature mobile storage media
          Type of card determines type of card reader needed

          What is a smart card?
          Stores data on microprocessor embedded in small card
          Input, process, output and storage capabilities

          What are the types of smart cards?
          Intelligent smart card contains processors and has input, process, output and storage capabilities
          Memory card has only storage capabilities
          What is e-money (electronic money)?

          What are microfilm and microfiche?
          Stores microscopic images of documents on roll or sheet of film
          Images recorded using computer output microfilm recorder
How do life expectancies of various media compare
v  Microfilm and microfiche have longest life of any storage media

What are recommended storage devices for the Home Users?
  • Internet hard drive
          What are recommended storage devices for the Small Office / Home Office (SOHO) users?
 
          What are recommended storage devices for the mobile users?
          What are recommended storage devices for the Large business users?

          What are recommended storage devices for the Power user?

13 comments:

  1. hello :) can I ask ......... more about Computer Microfilm Outpot Device?

    ReplyDelete
  2. heloo Can I ask What is Computer Microfilm Outpot Device ? :) Tnx

    ReplyDelete