Revision: Introduction to Computer System


Welcome to class!

In today’s class, we will be doing some revision on the introduction to the computer system. Enjoy the class!

Introduction to Computer System

A computer system can be defined as an electronic machine that accepts data as input, processes the data and produces the output as meaningful information.

computer system

Terms and terminologies of the computer system

I will be listing some terms and terminologies associated with a computer system. They include:

  1. Electronic
  2. Data
  3. Input
  4. Process
  5. Output
  6. Information

I will explain the terms and terminologies for better understanding.


A computer is called an electronic machine because the majority of the components are made up of electronic devices and materials such as transistors, microprocessor, resistor, capacitor, etc.


Data is defined as a raw fact and figure which are given to the computer in order to generate an output.

Attributes of data
  • Data is un-organized
  • It is un-analyzed
  • Data is un-processed
  • Data is rough
  • It makes no definite meaning

This simply means what is given to the computer to process e.g. data, information.

Input is sent into the computer using input devices such as the keyboard, joystick, light pen, scanner.

computer system


A process is carried out on data which can be arithmetical, logical, relational, etc. to produce information.


Information is defined as already processed data. Some attributes of information are listed below:

  • Information is organized
  • It is analyzed
  • Information is neat
  • It makes definite meaning
  • Information can be used as a reference.


In our next class, we will be talking more about the System Unit.  We hope you enjoyed the class.

Should you have any further question, feel free to ask in the comment section below and trust us to respond as soon as possible.

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