All digital computers, regardless of their size are used to transmit, store and manipulate information (data). Several different types of data can be processed by a computer. These include numeric, data character data, graphic data and sound etc. the most common two types of data is numeric data and character data. Scientific and technical application is mostly concerned with numeric data where as business field requires both numeric as well as character data.
To process a particular set of data, the computer must be given a appropriate set of instruction that is called the program as we discussed it above. These instructions are entered into the computer and it is stored in a portion of computer’s memory.
A stored program can be executed at any time as our want. For example:
1. A set of instruction that is input data will be entered into the computer through input device called keyboard and is stored in a portion of computer’s memory known as hard disk.
2. The input data will be processed to produce certain desired result as an output.
3. And finally the output will be printed in a sheet of paper or displayed through out put device known as monitor.
These three things can be repeated as many times we want and processing of it depends upon how much is to be calculated or processed.
To process a particular set of data, the computer must be given a appropriate set of instruction that is called the program as we discussed it above. These instructions are entered into the computer and it is stored in a portion of computer’s memory.
A stored program can be executed at any time as our want. For example:
1. A set of instruction that is input data will be entered into the computer through input device called keyboard and is stored in a portion of computer’s memory known as hard disk.
2. The input data will be processed to produce certain desired result as an output.
3. And finally the output will be printed in a sheet of paper or displayed through out put device known as monitor.
These three things can be repeated as many times we want and processing of it depends upon how much is to be calculated or processed.
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