4 Main Parts of a Computer System

1. Input Devices
   1. Keyboard
   2. Mouse
   3. Microphone
2. Output Devices
   1. Monitor
   2. Printer
   3. Loudspeaker
3. Processing Componants
   1. CPU
   2. RAM
   3. Clock
4. Backing Stores
   1. Hard Disk

1. Word Processor
   1. MS Word
2. DTP
   1. MS Publisher
3. Spreadsheet
   1. MS Excel
4. Database
5. Computer Control
   1. Sensing/Making decisions/Output of control signals
6. Data Logging
   1. MSAccess
7. Art Package
   1. Paintbrush

Anmerkungen:

• 4 Main Functions: To allow the app s/w to communicate with the hardware To manage the transfer of data to and from peripherals To manage the computer system To manage system security

1. Windows 98

   Anmerkungen:

   • Used   on single computers
2. MS Dos

   Anmerkungen:

   • Now out of date but still used on most computers
3. Windows NT

   Anmerkungen:

   • Like Windows 98 but used on computer networks

1. DVD

   Anmerkungen:

   • 4700 mb 7 x more than CD
2. Tape Streamer

   Anmerkungen:

   • Used to back up hard drives
3. Floppy Disk/Zip Disk

   Anmerkungen:

   • small portable magnetic disk
4. CD Rom

   Anmerkungen:

   • Optical disk CD-r & CD-RW can be rewritten on 650mb
5. Hard Drive

   Anmerkungen:

   • 10000 mb - The C drive on computers a magnetic store