Computer,Function & Features of Computer

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What is Computer:-

The word ‘computer’ has been derived from the Latin word ‘computare’, which means ‘to calculate’. A computer is an electronic device that manipulates information or data according to the set of instructions called programs. It has the ability to store, retrieve and process data.

Functions of Computer

1. Input :-Information or data that is entered into a computer is called input. It sends data and instructions to the Central Processing Unit (CPU).

2. Processing:- It is the sequence of actions taken on data to convert it into information which is meaningful to the user. It can be calculations, comparisons or decisions taken by the computer.

3. Output:- It makes processed data available to the user. It is mainly used to display the desired result to the user as per input instructions.

4. Storage:- It stores data and programs permanently. It is used to store information during the time of program execution and possible to get any type of information from it.

Features of Computer

1. Speed The computer can process data very fast at the rate of millions of instructions per second.

2. Accuracy Computers provide a high degree of accuracy. They respond to the user as per the input instructions.

3. Storage Capacity Computers are capable to store huge amount of data, which depends on the capacity of hard disk.

4. Versatility Computers can do different types of work simultaneously. They can perform multiple tasks at a same time.

5. Diligence Unlike human beings, a computer is free from monotony, tiredness, lack of concentration, etc., and can work for hours without creating any errors.

6. Secrecy Leakage of information is reduced by creating login system with password protection.

7. Reliability Computers are more reliable than human beings. Computers always produce exact results. The possibility of errors occur only if the input is wrong, i.e. the computers never make mistakes of their own accord.

8. Plug and Play Computers have the ability to automatically configure a new hardware and software components.

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