Google Docs Introduction Part 1

Google Docs Introduction Part 1

Learn With Thiru

University College of Jaffna

University of Vocational Technology

Information Communication Technology Computer Application Assistant K2S003

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Computer

An electronic device which is capable of receiving information (data) in a particular form and of performing a sequence of operations in accordance with a predetermined. Such as a variable set of procedural instructions (program) to produce a result in the form as information or signals.

Hardware Classification

Hardware is just another word for computer equipment; it is the physical parts of the computer that we can see and touch. All computer equipment can be grouped into one of the following

Categories of hardware devices:

Input

Processing

Output

Storage

Communication

Input device

Any machine that feeds data into a computer call input device.

Eg:

Keyboard : The keyboard is still the primary input device used with computers.

Mouse : The mouse is a pointing device that allows us to interact with the computer in a more effective and graphical way.

Scanner

Mic

Web Camera

Barcode Reader

Processing devices

These devices process your data (raw facts) into information (something useful to humans).

CPU (Central Processing Unit)

This is the heart of the computer, the main chip that does all the work

Motherboard (main circuit board)

This circuit board connects all the different components inside the box (system unit)

Output Devices

Any machine capable of representing information from a computer.

Example:

Display screen: The monitor, or computer screen provides us with immediate output results from the computer.

Printers: The printer provides us with a permanent printed copy of the computer’s output.

Plotters

Projector

Speaker