Characteristics (Features) of Computer

There are many Characteristics (Features) of Computer these are given below:

1.      Speed: The data processing speed of the electronic computer is very fast because the signals can pass at the speed of electricity which is near to that of speed of light i.e. 2.997 × 108 m/sec. Thus millions of calculations can be done in a second. Such speeds are beyond the comprehension of the human brain.

2.      Accuracy: The accuracy of a computer is consistently high, and every calculation is performed with the same accuracy i.e. almost 100% accurate results are always the same as per design. The degree of accuracy of a particular computer depends upon it’s designed.  Accordingly,  software  needs  to  be  designed  properly,  and  proper  checks  and  controls  are  necessary  for  the  program  and  data.  Errors  can  occur  in  a  computer  system  due  to  inaccurate  data or instructions fed by humans or end-users

3.      Word length: Digital computer operates on binary digits (bit), a combination of 1 (one or high) and 0 (zero or low), which means all data or information are kept in a computer or its memory in  terms  of  0’s  and  1’s.  8  bits  is  equal  to  one  byte.  The  number  of  bits  that  a  computer  can  process at a time in parallel is called its word length. Commonly used word lengths are 8, 16, 32, or 64. Longer the word length, the faster the computer is.

4.      Automation:  A  computer  is  an  automatic  machine,  capable  of  functioning  automatically,  once  the  appropriate  set  of  instructions  (program)  and  data  are  provided  to  the  computer.  Once  a  task is initiated in a computer, it can proceed automatically.

5.      Diligence: The computer can perform repetitive tasks without being bored and never gets tired. Diligence means being constant and earnest in effort and application. It can continuously work for  several  hours  or  days  after  the  data  and  programs  are  fed  in  it.  Unlike human beings, a computer is free from tiredness, weakness, lack of concentration and monotony. If one work is repeated  many  times,  human  being  suffers  from  physical  and  mental  tiredness,  but  the  computer  can  perform  the  repeated  task  with  the  same  speed  and  accuracy.  Because of this reason, human beings are getting a high level of benefit.

6.      Reliability: The computer system is particularly master a lot of work without any mistakes and tiredness. That’s why they are widely used everywhere because of their reliability. On the other hand, Unreliable can occur if the end-user feeds incorrect data and instructions, or faulty instructions for processing the data automatically lead to faulty results. This is known as GIGO,  i.e.  Garbage  in  Garbage  Out  (GIGO).  Errors  may  occur  in  the  results,  but  due  to  increased efficiency of error-detecting techniques, they can be minimized. Thus, the probability of errors in a computer is negligible. 

7.      Versatility: Computer can perform different tasks depending upon the different program fed to it, is known as versatility. It has a wide range of application areas i.e. it can do many types of jobs.  It  can  perform  operations  ranging  from  simple  mathematical  calculations  to  highly  complex  and  logical  manipulations.  Some  of  the  applications  areas  of  computers  are  in  education,   business,   office-automation,   bank,   medical   diagnosis,   science   and   technology,   communications, and astronomy, so it is versatile in nature.

8.      Storage      capacity: A computer can store a huge amount of data. It has a data storage area, called memory. Any data stored in the memory can be retrieved at any time and at a very fast speed. The memory can be divided into primary memory and secondary storage. Primary memory is the working  memory  of  the  computer  and  is  capable  of  sending  and  retrieving  data  at  very  high  speed, whereas secondary storage is long-term memory and operates more slowly but capable of  storing  large  amounts  of  data.  Example:  floppy  disk,  hard  disk,  magnetic  tape,  magnetic  disks and optical disk.

computer Science Notes Click Here

The storing capacity of a computer is measured in terms of byte, kilobyte, megabyte, gigabyte, terabyte. A binary number either 0 or 1 is called a bit (binary digit). 4 bits are equal to 1 nibble and 8 bits are equal to 1 byte or a character. One kilobyte is equal to 210 that equal to 1024 bytes.

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