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| {|style="border-style: solid; border-width: 10px 20px 100px 0" | | {|style="border-style: solid; border-width: 10px 20px 100px 0" |
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| + | '''What does a computer do ?''' |
| [[Image:Introduction-Part3_html_1f9b3b92.png]]<br> | | [[Image:Introduction-Part3_html_1f9b3b92.png]]<br> |
− | '''What does a computer do ?'''
| + | In this chapter you will |
| + | learn about computers, a new ICT tool. A computer is a device which |
| + | takes input, processes it and gives output which can be stored and |
| + | shared. When you enter data into your computer, it is called |
| + | as input. An input can be data like text or picture or an instruction |
| + | (what |
| + | to do with the data). This data is processed (process |
| + | means to perform a series of operations on a set of data) and you |
| + | will get the output. Data or information that the computer generates |
| + | is called the output. |
| + | |
| + | |
| + | Suppose |
| + | you want to add two numbers, 2 and 5. Any |
| + | input has two parts, data and the instruction '2 + 5' is the input. |
| + | The numbers 2 and 5 are called the 'data' and |
| + | the '+' is called the instruction. A CPU (or a software to add the |
| + | numbers) will do the addition, it is called the process. The answer |
| + | '7' is the output or the result from the input and the process. |
| + | |
| + | |
| + | A |
| + | computer lets you to do many tasks like writing a letter, watching a |
| + | educational film, playing games, listening to music and more. You can |
| + | also look for information on the Internet. |
| |} | | |} |
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