What is computer ?

Q.1 What is computer ?

Ans-

Today’s world is an information-rich world and it has become a necessity for everyone to know about computers. A computer is an electronic data processing device, which accepts and stores data input, processes the data input, and generates the output in a required format

         Functionalities of a Computer

• If we look at it in a very broad sense, any digital computer carries out the following five functions:

Setp 1.Takes data as input.

Setp 2.Generates the output.

Setp 3.Processes the data and converts it into useful information.

Setp 4.Stores the data/instructions in its memory and uses them as required

Setp 5.Controls all the above four steps.

            Advantagesof Computers

• Computer is a very fast device.
•  It is capable of performing calculation of very large amount of data.

The computer has units of speed in microsecond, nanosecond, and even the picosecond.

                      Accuracy

1. In addition to being very fast, computers are very accurate.
2. The calculations are 100% error free.
3. Computers perform all jobs with 100% accuracy provided that the input is correct.