Computer hardware

What is inside a computer.


Computer hardware is all the physical components of a computer. These include the motherboard, CPU (central processing unit), RAM (random access memory), sound card, graphics card, power supply, fan unit and the hard disk drive.

Power supply and the fan unit

Normally the power supply and the fan unit is in the same component. The power supply powers the computer. The fan unit cools all the components to stop them from over heating.

Central processing unit

The central processing unit carries out instructions from the computer program. Some computers have more than one CPU this is called multiprocessing.
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Hard disk drive

The hard disk drive is data storage it saves everything even when turned off.
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Graphics card

The graphics card is in charge of adding all colour to images displayed on the screen.