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

Anotações:

• 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

   Anotações:

   • Used   on single computers
2. MS Dos

   Anotações:

   • Now out of date but still used on most computers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

   Anotações:

   • Like Windows 98 but used on computer networks

1. DVD

   Anotações:

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

   Anotações:

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

   Anotações:

   • small portable magnetic disk
4. CD Rom

   Anotações:

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

   Anotações:

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