STORAGE

STORAGE

1. FLOPPY DISK

   • Portable, inexpensive storage medium
   • Secondary storage
   • Also called diskette
   • Reads from and writes to floppy disk

2. PC CARDS

   • Adds capabilities to the computer
   • Used in notebook computer

3. MOBILE STORAGE DEVICE

   • Storage for small mobile devices
   • e-money - online payment
   • Microfilm & Microfiche
     • Images recorded using - computer output microfilm recorder
   • Card reader - read information stored
     • Smart card - stores data on McP

4. TAPE

   • Magnetically coated plastic ribbon
     • Capable of storing large amountsof data at low cost
   • User for backup

5. CDs & DVDs

   • CDs
     • Can be read only or read/write
     • Typically stored in single track
     • Have CD-Rs & CD-RWs
   • DVDs
     • High capacity
       • Stores databases, music, complex software & movies
       • Storing 4.7GB to 17GB
         • Must have DVD-ROM drive/DVD Player
           • To read DVD-ROM

6. ZIP DISKS

   • Magnetic medium that stores 100MB to 750MB of data
   • Used to backup and transfer file
   • High capacity storage

7. HARD DISKS

   • Portion of memory that processor uses to store frequently accessed times
   • Have external hard disks & removable hard disks
   • Used to backup & transfer
   • Internet hard drive - file can be accessed from any computer with web access

Bilder und Dateien der Mindmap