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What is Computer?

 The word computer originates from the word compute which means to calculate. It was initially used to refer to human beings that perform calculations.
A computer has been defined so many forms by different authors. Some of the definitions are as follows:
- Computer :-  is an electronic device that accepts data as input Process the data and gives out information as output. 
- Computer :- It can be defined as an electronic or electromechanical device that is capable of accepting data, holds a means of instruction in its memory, process the information given by following sets of instructions to carry out a task without human intervention and at the end provide significant result.
- Computer :- is any machine which accepts data and information presented to it in a prescribed form,carry out some operations on the input and supply the required result in a specified format as information or as signals to control some other machines or process.
- Computer :- is an electronic machine which is capable of storing data or performing computation on such data and retrieving information at a very high speed.
- Computer : - is an electronic device which on receipt of an appropriate input is capable of processing the input according to a set of previously supplied instructions and making the results available, if desired.

Computer performs four basic Functions which are as follows

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.

Also read : characteristics and application of Computer science

Features Of computer
The key features of computer are as follows

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.

Thanks for reading.

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Comments

Unknown said…
Very nice one keep it up

March 19, 2022 at 4:14 AM
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