tle computer

Main part of micro-computer, sometimes called chassis

• System Unit

• Motherboard

• Central Processing Unit (CPU)

The main circuit of a computer. It contains all the circuits and components that run the computer.

• Motherboard

• CPU

• System Unit

The processor is the main brain of a computer system.

• System Unit

• CPU

It is the computer's working storage that holds data instructions for processing and processed data waiting to be sent to secondary storage.

• Primary Storage

• Secondary Storage

It is non volatile, means it holds data even when the power is ON and OFF

• Read Only Memory (ROM)

• Random Access Memory (RAM)

It is volatile, means it holds data only when the power is ON.

• Read Only Memory (ROM)

• Random Access Memory (RAM)

It is a data pathway between several hardware components inside or outside a computer.

• Expansion Bus

• Power Supply Unit

Installed in the back corner of the PC case, next to motherboard. It converts 120vac(standard house power) into DC voltages that are used by other components in the PC.

• Power Supply Unit (PSU)

• Central Processing Unit

A magnetic storage device that is installed inside the computer.

• Hard Disk Drive

• Optical Drive

• Flash Drive

It is a storage device that uses lasers to read data on optical media

• Optical drive

• Hard disk drive