COMPONENTS

COMPONENTS

1. Motherboard connects all the components

2. Fan cools the components when they get hot

3. CPU processes information

4. Power supply gives all the components power

5. RAM stores data while powered

6. Hard drive reads and writes data onto metal platters

7. Optical Drive reads and writes data stored on compact discs

8. Floppy drive reads and writes information from floppy disks

9. CPU

   • Fetch
     • The information is "fetched" from the RAM
   • Decode
     • The CPU determines which components need to work and what they need to do and decode it
   • Execute
     • The CPU gives instructions for the components to carry out so that they can execute what needs to be done

10. PROCESSOR SPEED

    • One cycle per second = 1 Hertz (Hz) = 1 instruction per second
    • 1 KiloHertz (kHz) = 1000 cycles per second
    • 1 Megahertz = (MHz) = 1,000,000 cycles per second
    • 1 Gigahertz (GHz) = 1,000,000,000 (1 Billion) cycles per second