System unit

 What are the components of a system 

unit

1. Motherboard

• A system core. Actually, it is a heart of computer. Other system elements are connected to motherboard, and the whole system is managed and controlled by it. Motherboard contains special chips on which some ICs (Integrated circuits) are etched.

2.Processor

• a computer engine, its brain. CPU (central processing unit) manages most of computer operations. Processors can be with pins or pin-less. It contains a control unit and a logic unit.
  

3.RAM(Random Access Memory)

• primarily memory. It storages all data processed by programs and apps on the computer. There are dynamic and static RAM

4.hard drive

• a system memory that storages data in a form of archives. Here all our files, folders, operating system, programs, and applications are saved. Hard driver can be of two type: PATA (Parallel Attachment Packet Interface) and SATA (Serial Attachment Packet Interface).

5.Video card

with its help the outputs from a computer are displayed on the screen. Modern video cards support HDMI (high-definition multimedia interface), VGA (video graphics array) and DVI (digital visual interface).

6.Power Supply

provides every part of PC with electrical power.