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also look for information on the Internet.
 
also look for information on the Internet.
 
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[[Image:Introduction-Part3_html_1f9b3b92.png]]<br>
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''What does a computer do ?''
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In this chapter you will
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learn about computers, a new ICT tool. A computer is a device which
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takes input, processes it and gives output which can be stored and
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shared. When you enter data into your computer, it is called
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as input. An input can be data like text or picture or an instruction
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(what
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to do with the data). This data is processed (process
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means to perform a series of operations on a set of data) and you
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will get the output. Data or information that the computer generates
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is called the output.
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Suppose
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you want to add two numbers, 2 and 5. Any
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input has two parts, data and the instruction '2 + 5' is the input.
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The numbers 2 and 5 are called the 'data' and
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the '+' is called the instruction. A CPU (or a software to add the
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numbers) will do the addition, it is called the process. The answer
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'7' is the output or the result from the input and the process.
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A
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computer lets you to do many tasks like writing a letter, watching a
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educational film, playing games, listening to music and more. You can
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also look for information on the Internet.
      
== History of computers ==
 
== History of computers ==
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