computers and components

computers and components

1. CPU: Processes information

   • central processing unit.

2. Motherboard: connects all components

3. 1 kilohertz =1000 cycles per second.

   • 1 Megahertz= 1 million cycles per second.
     • 1 Giga Hertz=1 billion cycles
   • CPU speed

4. RAM: stands for random access memory

   • Temporary Storage
   • Stores data while powered
   • Currently used
   • Volatile
   • stores data which is processed

5. ROM: read only memory

   • Permanent storage
   • Non volatile
   • Boot strap program which allows the system to start up properly.

6. Power supply: Supplies power to the components.

7. Fan: cools the components that may get hot.

8. Optical Drive: Reads and writes data stored on compact discs.

9. Floppy Drive: Reads and writes information from Floppy Disks.

10. Hard Drive: Reads and writes data onto metal platters.

    • secondary storage

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