Meaning Functions Characteristics or Features of Computer System – Learn Computer Basics Online Free

Meaning Functions Characteristics or Features of Computer System – Learn Computer Basics Online Free

Overview – meaning, Definition and Origin of Computer, Functions of Computer, Characteristics or Features of Computer


Meaning and Origin on Computer:
The word “COMPUTER” originates from the-- word “COMPUTE” which means to calculate. Earlier computer was considered to be a calculating device, which can perform arithmetic operations at enormous speed.

Functions Of Computer:
It Process the data and make you available information but also able to perform the subsequent steps on basis of processed information. This function makes the computer something more than a data processing device, i.e. it is an automatic electronic machine or device which accepts raw information as an input and reveals useful information as output or it processes according to a list of instructions and gives the output. It can perform a variety of jobs which are mentioned as under:

Various Functions Which Are Performed By Computer:
·        Speedy and accurate calculations
·        Storage of information
·        Retrieval of information
·        Combining information
·        Sorting information
·        Processing of information
Computer is a small machine which has a mixture of various characteristics. The following are the characteristics which computers possess:

1.      Speed: A computer is a very fast device. It can perform in few seconds, the amount of work that a human being can do in an entire year. The speed of a computer measure in microseconds(10-6), nanoseconds(10-9) and picoseconds (10-12). A powerful computer is capable of performing several billion arithmetic operation per second.

2.      Accuracy: Computer is very accurate device. The accuracy of a computer is principle high. The degree of accuracy of a particular computer depends upon it’s design. Computer done very calculation with same accuracy. Errors can occur in a computer, However, these problem are mainly due to human rather than technological weaknesses. 

3.      Automatic(Automation): A machine is no sooner than done to be automatic if it, works by itself without human intervention. Computer are automatic machines, because one started on a job, they carry on, until the job is finished, without any human assistance. However, computer being machines can not start themselves. They cannot go out   find their own problems and   solutions. They have to be instructed. 

4.      Diligence: Computer has unlike human beings. A computer is free from dullness and lack of concentration. It can continuously work for hours without Creating any error human beings in doing regular types of jobs, which requires great accuracy. Computer can perform the number of calculation with exactly the same accuracy and speed as the first one.

5.      Versatility: Versatility is a most important characteristic of computer. It means the capacity to perform completely different type of work. You may use your computer to prepare payroll slips. Next moment you may use it for inventory management or to prepare electric bills. A computer is capable of performing almost any task, if the task can be reduced to series of logical steps. 

6.      Memory(Power of Remembering): Computer has a brain, but unlike human beings. A computer can store data and information. And recalled as long as you require it, for any numbers of years. Because of it’s secondary storage capability. A data and information can be retrieved as long as desired by the user and can be recalled, as when required. The information recalled would be as accurate as on the day when it was fed to the computer. 

7.      No. I.Q.(Intelligence Quotient) : A computer is not a magical device. It is no intelligence of it’s own. User can determine, what tasks will the computer perform. So a computer cannot take its own decision as you can.

8.      No Feelings: Computer has no feelings. They have no emotions, because they are machine. Computer is not like human heart and soul. Computer cannot make such judgments on their own. Their judgment is based on the instructions given to them in the from of programs, that are written by us.  

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