Changes
From Karnataka Open Educational Resources
1,145 bytes removed
, 06:14, 3 June 2014
Line 54: |
Line 54: |
| also look for information on the Internet. | | also look for information on the Internet. |
| |} | | |} |
− |
| |
− | [[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.
| |
| | | |
| == History of computers == | | == History of computers == |