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Note on Classification of Computer On the Basis of Size

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We can classify computers on the basis of size as below:

Super computer

Super computer is the fastest, most expensive, big in size, and most powerful computer that can perform multiple tasks within no second. It has multi-user, multiprocessing, very high efficiency and large amount of storage capacity. It is called super computer because it can solve difficult and complex problem within a nano second.

Application

  • Used to forecast the weather and global climates
  • Used in military research and defense systems
  • In automobile, aircraft, and space craft designing
  • Used in seismography, plasma and nuclear research
  • Study of genetic engineering
  • Digital film recording

Example
C-DAC (Center for Development of Advanced Computer) of India has developed PARAM series of Super Computer. ANURAG is also Indian Super Computer. Other Super Computers are CRAY XMP/14, CDC-205 etc. Mr. Seymour Cray was a pioneer person in the field of supercomputer production. He had developed the first super computer Cray-1 in 1976.

Mainframe Computer

Mainframe Computer is the large sized computer that covers about 1000 sq feet. It is general purpose computer that is designed to process large amount of data with very high speed. It accepts large amount of data from different terminals and multiple users and process them at same time. More than 100 users are allowed to work in this system. It is applicable for large organization with multi-users for example: large business organization, Department of examinations, Industries and defense to process data of complex nature. It uses several CPU for data processing.

Application Areas

  • Government and civilian
  • Credit card processing
  • Back Account management
  • Marketing
  • Business data processing in large organization
  • Air traffic control system
  • Industrial design

Example
IBM S/390, IBM S/709, ICL 39, CDC 6600

Minicomputer

Mini Computers are medium sized computer. So, these are popular as middle ranged computer. It is also multiple user computer and supports more than dozen of people at a time. It is costlier than microcomputer.

It is also used in university, middle range business organizations to process complex data. It is also used in scientific research, instrumentation system, engineering analysis, and industrial process monitoring and control etc.

Example
Languages, multimedia, graphics, 3D graphics and games. These are popular among students, professionals and home users due to small size, low price and low maintenance.
PDP-11, VAX etc.

Microcomputer

Most popular general purpose computers which are mostly used on day to day work are microcomputers. These are popular as Home PC or Personal Computer (PC) because these are single user computers and mostly used for personal use and application. These support many higher level application cost and easy in operation.

Example
IBM PCs, Apple Mac, IBM PS/2, All computer available with Pentium Models etc.

  • On the basis of size there are four types of computer. They are minicomputer, micro computer, mainframe computer and super computer.
  • Super computer is the fastest, most expensive, big in size, and most powerful computer that can perform multiple tasks within no second.
  • Mainframe Computer is the large sized computer that covers about 1000 sq feet.
  • Most popular general purpose computers which are mostly used on day to day work are microcomputers.
  • Mini Computers are medium sized computer.
.

Very Short Questions

On the basis of size and processing speed the computers are classified as:-

  • Super computer. 
  • Mainframe computer.
  • Mini computer.
  • Micro computers.

Super computers are special purposed, powerful, most expensive and fastest computer. The application of super computers in real life situation are aircraft launching, automobile designing etc.

Mainframe computers are large sized multi-user computers with fast processing, speed and high storage capacity and support thousands of users. They are mainly used in large scale multinational companies.

Minicomputers Microcomputers
a. They are more powerful than micro
computers.
a. They are less powerful minicomputers.
b. They are comparatively expensive. b. They are smaller in size.
c. They are comparatively expensive. c. They are comparatively cheaper.
d. They are not general purpose. Eg.
IBM 1401 etc.
d. They are general purpose. Eg. Laptop,
PDAs etc.

0%
  • Which one of them is used in seismography, plasma and nuclear research?

    mini computer
    super computer
    mainframe computer
    analog computer
  • Which one of them is an example of super computer?

    ICL 39
    pple Mac
    PDP-11
    VAX
  • What is the name of first super computer?

    Cray-110
    Spray-1
    Crab-1
    Cray-1
  • Who developed the first super computer?

    Mr. Semon Cray
    Mr. Seymour Crab
    Ms. Seymour Cray
    Mr. Seymour Cray
  • What is Super computer?

    Computer which use parallel processig technology.
    Computer which posses high processing speed.
    Computer which measures continious types.
    Computer made by using microchips.
  • What is mainframe computer?

    32 bits, 45 bits, 64 bits machines and have 1 to 100 MIPCS as processing speed.
    machines which measures continious types.
    machines which use parallel processig technology.
    machines made by using microchips.
  • What is mini computer?

    none of the above
    16-bit computer system with 512 KB memory and 20 MB hard disk.
    parallel processing technology.
    made by using microchips.
  • What is micro computer?

    parallel processing technology.
    18-bit computer system.
    none of the above
    known as personal computer made by using microchips.
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