• A Computer is a device that can receive, process and store data.
• “input devices” use to input data into the computers.
• To process the data “Central Processing Unit” is available.
• After processing data, result shows on the monitor screen.

TYPES OF COMPUTERS

Computer can be define by different size, capability and processing speed. Some computer like mainframe, supercomputer.

PARTS OF COMPUTER

HARDWARE

SOFTWARE

INPUT DEVICES

devices like keyboard and mouse which is used to input data and instruction to the computer are called input device.

1. Keyboard
2. Mouse
3. Trackball
4. Scanner
5. light pen
6. Joystick

OUTPUT DEVICES

1. Monitor
2. Printer
3. Plotters
4. Projector
5. Speaker

COMPUTER MEMORY

1. Primary(Main memory)
2. Secondary