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Computer Science
Class 3
Prepared by
Jeevan Subedi
Computer
 "A computer is an electronic machine that takes
input, processes the input and gives result.“
 A computer receives data and instructions as
an input; processes the data and gives result.
A computer can perform many
different tasks.
 You can listen or read news.

 You can draw and color pictures.

 You can write letters and send e-mails to your friends.

 You can do mathematical calculations such as addition, subtraction, multiplication and
division.

 You can listen music and watch movies.

 You can check the spelling of words and correct them.

 You can store lots of data and information.

 You can chat with friends through the Internet.

 You can play different games.

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Class 3 c0mputer day 1

  • 2. Computer  "A computer is an electronic machine that takes input, processes the input and gives result.“  A computer receives data and instructions as an input; processes the data and gives result.
  • 3.
  • 4.
  • 5. A computer can perform many different tasks.  You can listen or read news.   You can draw and color pictures.   You can write letters and send e-mails to your friends.   You can do mathematical calculations such as addition, subtraction, multiplication and division.   You can listen music and watch movies.   You can check the spelling of words and correct them.   You can store lots of data and information.   You can chat with friends through the Internet.   You can play different games.