Posted by: wasaa | June 22, 2008

Classification of Computers

      •         According to Size

          According to Technology

          According to Purpose


According to size



          Mainframe Computers



          Microcomputers, or Personal Computers



Supercomputers : are widely used in scientific applications such as aerodynamic design simulation, processing of geological data.

         Supercomputers are the most powerful computers. They are used for problems requiring complex calculations.

         Because of their size and expense, supercomputers are relatively rare.

         Supercomputers are used by universities, government       agencies, and large businesses.

Mainframe Computers: are usually slower, less powerful and less expensive than supercomputers. A technique that allows many people at terminals, to access the same computer at one time is called time sharing. Mainframes are used by banks and many business to update inventory etc.

         Mainframe computers can support hundreds or      thousands of users, handling massive amounts of input, output, and storage.


         Mainframe computers are used in large organizations where many users need access to shared data and programs.


         Mainframes are also used as e-commerce servers,            handling transactions over the Internet.

Minicomputers: are smaller than mainframe, general    purpose computers, and give computing power without adding the prohibitive expenses associated with larger systems. It is generally easier to use.

         Minicomputers usually have multiple terminals.


         Minicomputers may be used as network servers and Internet servers.




         Workstations are powerful single-user computers.


         Workstations are used for tasks that require a great deal of number-crunching power, such as product design and computer animation.


         Workstations are often used as network and Internet servers.

Microcomputers, or Personal Computers : is the smallest, least expensive of all the computers. Micro computers have smallest memory and less power, are physically smaller and permit fewer peripherals to be attached.

         Microcomputers are more commonly known as personal   computers. The term “PC” is applied to IBM-PCs or compatible computers.


         Desktop computers are the most common type       of PC.


         Notebook (laptop) computers are used by people who        need the power of a desktop system, but also portability.


         Handheld PCs (such as PDAs) lack the power of a             desktop or notebook PC, but offer features for users   who need limited functions and small size.

Personal Computers(PC)

Desk Top

Lap Top

Palm Top



According to Technology


         Analog Computers

         Digital Computers

         Hydride Computers


Analog Computers:- These computers recognize data as a continuous measurement of a physical property ( voltage, pressure, speed and temperature).

            Example: Automobile speedometer

Digital Computers:- These are high speed programmable electronic devices that perform mathematical calculations, compare values and store results. They recognize data by counting discrete signal representing either a high or low voltage state of electricity.

Hybrid Computers:-A computer that processes both analog and digital data.


According to Purpose

  1. General purpose Computers
  2.  Special Computers


General purpose Computers

A ‘General Purpose Computer’ is a machine that is capable of carrying out some general data processing under program control.

Refers to computers that follow instructions, thus virtually all computers from micro to mainframe are general purpose. Even computers in toys, games and single-function devices follow instructions in their built-in program.


Special purpose Computers

A computer that is designed to operate on a restricted class of problems.

Use special purpose computer equipment to obtain patient diagnostic information.




  1. thanks!!!!! i got my little brother’s assignment here!! nice and accurate but very flashy color used , it hurted my eyes,nevertheless thank you

  2. it is just a smart piece of information for my students! thanks alot guys!!!!!!!!!!

  3. thank you, i got my assignment about it, thank you again..

  4. Very informative. This article helped me go through with my homework today. Thanks a lot! (smiles)

  5. thanks a lot,you have typed exactly the way that was required for my assignment

  6. thanks,you gave something i didnt know before.

  7. thanx so much,you saved me a hell of problems by giving the answer to my assignment. thanx once again

  8. Thank you vfery for the information. I have now my Assignment in CL 1. Yepeeh!!!!!!GBU!

  9. Thank u very much for the informations that you feed to ur website. I have now my Assignment in CL 1.

    MOre Power and God bless u and ur staff!!!!

    • jebone//////pede share nmn sa assign ment mo sa cl 1 plzzzzzzzzzzzz

  10. ugave what other sites couldnt me prepared well for my test.thanks a lot

  11. You really explained the points very well but can u please post about classification by generation with there characteristics. Thanks in advance.

  12. thank u so much, i was able to submit my assinmnet in advance thanks to your well organised website. Stay Blessed !!!!!!!!!!!!!!!!!!!!!!!!!!

  13. This website has contributed to my studies in different ways thanks to wasaa………

  14. I was wonderin if u cud help me with this, 1.classify computers according 2 the type of signals used? 2.explain why computer operation is regarded as a system, illustrate. 3. Explain factors that determine the performance of a CPU?

  15. thanks a lot helped my in my homework.Thanks again

  16. Thank u very much, u really explained things well but one more thing u need are pictures of computers according to size

  17. wasaa explain the classification of the computer plzz assighment ko ka c eh’

    • plsss discuss dn

  18. wasaa what information of computer////explain,discuss///assignment cl 1 tomorow is dedline assignment..

  19. Thanks Guys. Just what I needed.

  20. tnx ah,,


    solve n solve s answer..

  21. tnx

  22. are there classification of computers accdg. to application, method of handling data, speed and capacity??

  23. thanks n may God bless u

  24. thanks very much indeed!

  25. is is very useful for my assignment
    thank u

  26. thanks for the information about the classification of computers..

  27. thank you very much for the information

  28. it was good though it cud be better…………….i found it really nice…….

  29. this info was important tnx

  30. thanx 4 the information. The language used is simple,short n above all understandable

  31. Thank u very much for the informations that you feed to ur website. I have now my Assignment in CL 1.

    MOre Power and God bless u and ur staff!!!!

  32. thank u i thought that answer is correct

  33. tnx 4 d info.i hve many lessonz that ive learn tnx a lot


  35. I liked your information about classification of computer according to size. am about to understand the topic now.

  36. short n sweet information

  37. thanks very much it was a very precise source of information for me.

    • Dear,
      We can help you.send us more details about you

  38. Exactly wat i needed 4 my assignment. Thanks a lot.

  39. Nice! I was not aware that the classifications are organized in three groups. 🙂

  40. why ddnt u classify computers according to generation?
    that’s one of the main ways of classifying computers knw!!!!!!!!!!!!!!!!!!!!!!!!!!!

  41. plx post classification by speed thank you in advance

  42. I am very grateful for all your contributions, please keep it up and God bless you all till see again.

  43. Thank you for the information now i can do my assignment in Computer class thank you 😀

  44. thank uuuuuuuuuuuuuuuuuuuuuuuuuuuuuu

  45. hi sir bruce diri ko ga kuha sng assign…………………………………………..

  46. i luv u wasaa

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s


%d bloggers like this: