Main parts of a computer

One of the main parts of a desktop computer is a system unit.

System unit contains all of the hardware. System units differ in size. There could be small system units and big ones.

All other items that are connected to a computer are peripherals.

One of the items that is connected to a system unit is a monitor. There could be more than one monitor connected to a system if graphic card support  multi-monitor functionality. There are different types of a monitors. A monitor can be a bulky old type monitor. These are called CRT monitors, or a monitor can be slim. Slim monitors are LCD monitors. LCD stands for Liquid Crystal Display. Having a good monitor is important for graphic designers. They work with graphics that is in different colors, and their monitors need to represent colors well.

Input is provided by some sort of keyboard, a mouse, a pad, or a video camera. There maybe many different kinds of a keyboard and a mouse.

Output can be visual, in this case it will be displayed in the monitor, an output also can be audible, in this case a sound will be played through computer speakers.

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