STORAGE

STORAGE

1. What is storage?

   • Holds data, instructions and information for future use

2. FLOPPY DISK

   • Also called diskette and secondary storage
   • Portable, inexpensive storage medium
   • Devices that reads from and writes to floppy disk

3. HARD DISK

   • High capacity stotage
   • Consists of several inflexible, circular platters that store items electronically
   • External hard disk
     • Freestanding hard disk that connects to system unit
   • Removable hard disk
     • Hard disk that you insert and remove hard disk drive
   • Internal hard disk
     • Provides storage for minimal monthly fee
     • Large file can be downloaded instantaneously
     • Others can be authorized to access the data
     • Files can be accessed from any computer with web access

4. ZIP DISKS

   • Require a zip drive - high capacity drive that reads from and writes on a zip disk
   • Used to back up and to transfer files
   • Magnetic medium that stores 100MB to 750MB of data

5. CD AND DVD

   • Flat, round, portable metal discs made of metal, plastic and lacquer
   • Can be read only or read/write
   • Picture CD
     • Stores digital versions of roll of film
     • Can be modified using photo editing software
   • CD - R
     • Disc can write once
     • Cannot erase disc content
   • DVD - ROM
     • Stores databases, music, complex software and movies
   • CD - RW
     • Can write on multiple time

6. PC CARD

   • Adds capabilities to computer
   • Used in notebook computers

7. TAPE

   • Storing large amounts of data at low lost

8. MICROFILM AND MICROFICHE

   • Stores microscopic images of documents on roll or sheet of film
   • Images recorded using computer output microfilm recorder

9. MINIATURE MOBILE STORAGE MEDIA

   • Storage for small model devices
   • Common types
     • Compact flash
     • Smart media
     • Secure digital
     • Memory stick
     • XD picture card
     • Microdrive
   • e-money
     • Also called digital cash
     • Paying for goods services over the internet

10. Smart card

    • Stores data on micro[rocessor embedded in small card
    • Input, process, output and storage capabilities

11. Card reader

    • Reads information that stored

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