Computer Fan
A Computer Fan is Used for the cooling the inside system.It's function is to draw cool air from outside and exit inside warm air to outside of system unit.Computer Fan is used for increasing the efficient of the central processing unit.Computer Fan noise started when processing is increased.Basically System Unit have atleast three fans in system unit one is used for power supply,second is for heat sinking of the central processing unit(CPU) and third fan is for the other card adapter e.g. video card, graphics card.Most of the system has one single fan in system unit that takes place on the processor for heat sinking.You can also turn on and turn off computer fan according to temperature by using different Software.Computer PC sizes are describes in the above Figure.
