Computer Hardware

Computer Hardware

1. Power Supply

   • The power supply unit in computer converts the power from the wall outlet to the type of power needed by the computer.

2. RAM (Random Access Memory

   • RAM is your system's short term memory.
   • Whenever your computer performs calculations, it temporarily stores the data in the RAM.
   • This short term memory disappears when the computer is turned off.
   • The more RAM you have, the fast the computer.

3. Heat Sink / Fan

   • Covers CPU to absorb heat and cool it down.

4. CPU (Central Processing Unit)

   • Its job is to carry out commands. Whenever you press a key or click the mouse, you're sending instructions to the CPU.
   • It is usually a 2 inch ceramic square that is covered by the heat sink.

5. Motherboard

   • This is the computer's main circuit board.
   • The motherboard connects directly or indirectly to every part of the computer.

6. Expansion Slots

   • Most computers have expansion slots on the motherboard that allow you to add various types of expansion cards.
   • Most computers have expansion slots on the motherboard that allow you to add various types of expansion cards.
   • These are sometimes called PCI (peripheral component interconnect) cards.

7. Hard Drive

   • Where your software, documents and other files are stored.
   • Long term storage.

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