CPU - Central Processing Unit

CPU - Central Processing Unit

1. Motherboard

   • Connects all components

2. Fan

   • Cools components that may get hot

3. Ram

   • Stores data while powered

4. CPU

   • Processes information

5. Power Supply

   • Supplies power to the components

6. Hard Drive

   • Reads and writes data onto metal platters

7. Floppy drive

   • Reads and writes information from floppy disk

8. Optical Drive

   • An optical drive in a computer system allows you to use CD's and create your own music by writing data.

9. 1 Hertz = 1 intruction carried out each second. 1 Kilohertz = 1000 cycles per second. 1 Megahertz = 1 000 000 (1 Million) cycles per second. 1 Gigahertz = 1 000 000 000 (1 Billion) cycles per second.

10. RAM and ROM

    • RAM: (Random Access Memory) Temporary data that is forgotten after the computer is turned off.
    • ROM: (Read Only Memory) When you switch on the computer, it checks if all the peripherals are attached with a small program held in ROM called the bootstrap loader, and loads the operating system. Used to see if everything is working.

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