“A computer is a machine that performs tasks according to certain instructions. To say more, a computer is an electronic device that accepts data with the help of input devices and processes them and provides those data in the form of information with the help of output devices. “
Instructions include several types of data. Like; Numbers, alphabet, figures, etc. According to this data, the computer produces the result. If the wrong data is given to the computer then the computer also gives the wrong result. This means that the computer works on the rule of GIGO – Garbage in Garbage Out.