• The word computer comes from the word “COMPUTE”.
  • The word compute means to “calculate” or to “count”.
  • A computer is an electronic machine that can accept  and arrange data to get meaningful information.

Different Types of Computer

  • Laptop Computer
  • Personal Computer
  • Palmtop Computer
  • Mainframe Computer

C – Common

O – Oriented

M – Machine

P – Purposely

U – Used for

T – Trade and Business

E – Edu – tainment (education and Entertainment) and

R – Research

Basic parts of the Computer

  • Monitor
  • Keyboard
  • Mouse
  • System Unit

Other parts of the Computer

  • Speaker
  • CD Writer
  • Scanner
  • Printer

Humans vs. Computers


  • Computers can do jobs without making mistakes
  • Computers can compute thousands of numbers in seconds.
  • Computers can store a large amount of data.
  • Computers do not have feelings.
  • Computers can do many jobs at the same time without getting tired.


  • Humans can easily get tired when doing the same work.
  • It takes minutes before people can add a long list of numbers.
  • Humans can forget information.
  • Humans needs tender loving care because we have feelings.
  • Humans cannot do many jobs for long periods of time. It’s the person using the computer who usually has to take a break and rest.

Limitations of the Computer

  • It cannot fix itself.
  • Computer maintenance is very costly.
  • It cannot make decision or judgment. It cannot think of itself.
  • It cannot work without electricity.


  1. janine said,

    June 8, 2009 at 1:43 pm

    sir it’s so long. how can i read those in one whole day?

    • aqdegamon said,

      June 9, 2009 at 11:13 pm

      janine, i am not asking to you to read it whole day and i think the topic is not long enough. you just have your patience. ok?

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