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Saturday, November 14, 2009

Components Of System Unit


A system unit is a case that contains electronic components of the computer used to process data.

The most common components are inside a system unit are:
1.The processor
2.The memory
3.Adapter cards e.g. sound card, modern card, video card, network card.
4.Ports
5.Drive bays
6.Power supply

Motherboard: The main circuit board in system unit is called the motherboard, it contains adaptor cards processor and memory chips.

Chip: A chip is a small semi-conducting material where intergrated circuits can be etched. Integrated circuits have many microscopic pathways capable of carrying electric current.

Central processing unit (CPU): The CPU carries and interprets basic instructions that can operate a computer. The control unit coordinates operations in a computer. The Arithmetic logic unit (ALU) does arithmetic, comparison and logical operations. This can also be known as the processor.

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