Computer Hardware - PC Parts

System Unit:
-CPU (central processing unit): the circuitry that processes the data, today we call it
-Microprocessor (a complex electronic circuit fabricated on a chip of silicon).

Memory: The circuitry that store information temporarily.

Input devices I/p: such as (keyboard, mouse, microphone, scanner, etc)

Output devices o/p: such as (screen, printer, plotter, speakers, etc)

Other electronic devices ( controller, Buss, etc)

Peripherals:
All the additional hardware components grouped around the CPU and the memory. These are I/O devices (input, output devices), storage devices, and communication devices.

The system unit is the case that houses the computer main components including the CPU and the memory. Also includes the following:

Power supply: this component transfer alternating current into the direct current needed for the computer operation.

Ports: are receptacle that enables you to plug in peripherals such as a printers, keyboard, and mouse to the connectors.

Mother board: (main board) this is a large printed circuit board, a flat piece of plastic or fiber-glass to which complex patterns of copper pathways link the semiconductors chips, including the microprocessor and the memory chips.

Expansion slots: are receptacles designed to fit expansion boards (adapter cards).

Drive bays: to accommodate the computers floppy disk drive, CD-ROM, DVD-ROM, and etc.

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