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A cenral processing unit(CPU), also called central processor, main processor or just processor, is the

electronic circuitry within a computer that executes instructions that make up a coputer program.

Motherboard is a complicated circuit board which contains a number of electronic chips and electric circuits .All these components in the computer are connected to the motherboard. The connectors of the input/output equipment also reach the motherboard . Slots for connecting the expansion cards can also be seen in the motherboard. Now you might understood how the motherboard got its name.

A solid state drive (SSD) is a solid state storage device that uses integrated circuit assemblies as memory to store data persistently.It is also sometimes called solid state disk, for historical reasons.

SSD technology primarily uses electronic interfaces compatible with traditional block input/output

hard disk drives(HDD).SSD is also used for to increase our computer speed like RAM.

A power supply unit converts to mains AC to low voltage regulated DC power for the internal components of a computer. Modern personal computers universally use switched mode power supplies. Some power supplies have manual switch for selecting input voltage, while others automatically adapt to the main voltage.

A graphic processing unit is a specialized electronic circuit designed to rapidly manipulate and alter memory to accelerate the creation of images in a frame buffer intended for output to display device.

GPUs are used in embedded systems, mobile phones, personal computers, workstations and game consoles . GPU is also used to increase the graphic quality while we playing a game.

The case is a important in the looking of your rig, but also influences the performance. If you are planning on overclocking, its likely that the system temperatures will be higher than normal. As a

result, a case with efficient airflow and room for adequate case fans will help extend the life of the internal components.