Note on Classification of Computer On the Basis of Work

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The computer is an electronic device which accepts the input and processes them to give desired output. There are various types of computer available in the market. We can classify the computer as special purpose computers and general purpose computers. Special purpose computers are applicable for special area and have limited area for application of temperature recording, speed measurement, telephone billing etc, but general purpose computers are the standard computers used for general application like word processing, spreadsheet, database application, internet access, program development etc.

Analog Computer

The computer that works with natural phenomena and physical values like earthquake measurement, speed of wind, weight light etc is known as Analog computers. It is especially used in scientific work, medical and industrial field. These are special purpose computers. It measures physical values such as temperature or pressure that fall along a continuous scale in temperature or pressure. For example, you can see a system at petrol pump that contains an analog processor and analog device that converts the flow of petrol into quantity. Speedometer in cars and your watch are other examples of an analog computer.

Features of Analog computer

  • It is specific to the particular task so we cannot use it for multiple applications.
  • It works on continuous data and gives continuous output.
  • It works in real time and has no storage capacity.
  • It gives output in the form of the graph, signals, table etc.

Digital Computer

A computer that works with digital value 0 and 1, where 0 is OFF and 1 is ON. It works with discrete data. Digital computer does not measure the continuous data for continuous output. Most of the electronic system is based on the digital system. Digital computers are very popular for actual computer works like preparation of the report, documentation, billing and other graphical work etc. The entire PC (Personal Computer) used today on different fields are digital computers.They are classified into two groups:

(i)Specific Purpose Digital Computer

Digital computer which are used to perform specific task is known as specific purpose digital computer. It only perform specific task.

(ii)General Purpose Computer

Digital computer which are used to perform general task is known as general purpose computer. It is used to perform various tasks.

Features of Digital computer

  • It works on the discontinuous or discrete data.
  • It is applicable for a general purpose so this is very versatile for an application.
  • It is based on the digits 0 and 1.
  • It is faster.
  • It has storage section also.
  • It is highly accurate and reliable than an analog system.

Hybrid computer

It is the combination of analog and digital computer system. It works with continuous and discrete value. The good qualities of analog and digital computers are combined on this computer and made as the hybrid computer. These are used in ICU (Intensive Care Unit) of hospitals, jet planes, and other data analysis terminals. The hybrid computer transfers the data from analog to digital and digital to analog and vice-versa.

Features of hybrid computer

  • It is an expensive system.
  • It is designed for the special purpose so it is not versatile.
  • It works on discrete and continuous data.
  • It has limited storage.
  • It is complex than another computer system.

  • The computer is an electronic device which accepts the input and processes them to give desired output.
  • There are three types of the computer on the basis of work. They are analog, digital, and hybrid computer.
  • Digital computer does not measure the continuous data for continuous output.
  • The hybrid computer is the combination of analog and digital computer system.
  • The computer that work with natural phenomena and physical values like earthquake measurement, speed of wind, weight light etc is known as Analog computers. 
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Very Short Questions

The broad classifications of computer on the basis of work (function/activity) are:

  • Analog computer: Analog computer is special purpose computers which are designed to measure the continuous physical values such as speed, pressure, etc.
    E.g. speedometer, thermometer etc.
  • Digital computer: Digital computers are general purpose computers which work on binary digits by accepting discontinuous data. E.g. personal computer.
  • Hybrid computer: The computers which perform the task of both analog and digital computer are known as Hybrid computer. They are known as special purpose computers. E.g. ECG machine.

Analog computer Digital computer
1.They process continuous data. 1. They process discontinuous data
2.They are special purpose computers 2. They are general purpose computers.
3.They are expensive than digital
computers.
3. They are cheaper than analog computers.
4. They produce Analog signals. Eg.
Seismograph etc.
4. They produce digital signals. Eg.
Personal computer, Laptops etc.

Any three features of analog computer are as follows:

  • It is specific to the particular task so we cannot use it for multiple applications.
  • It works on continuous data and gives continuous output.
  • It works on real time and has no storage capacity.

Hybrid computer is the combination of analog and digital computer system. It works with continuous and discrete value. The good qualities of analog and digital computers are combined on this computer and made as the hybrid computer. These are used in ICU (Intensive Care Unit) of hospitals, jet planes, and other data analysis terminals. The hybrid computer transfers the data from analog to digital and digital to analog and vice-versa.

Some of the features of digital computer are as follows:

  • It works on the discontinuous or discrete data.
  • It is applicable for the general purpose so this is very versatile for an application.
  • It is based on the digits 0 and 1.
  • It is faster.
  • It has storage section also.

0%
  • The computer that work with natural phenomena and physical values like earthquake measurement, speed of wind, weight, light, etc. is called _______.

    digital computer
    analog computer
    hybrid computer
    super computer
  • Which one of the computer is based on the digits 0 and 1?

    Digital computer
    Super computer
    Hybrid computer
    Mini computer
  • Which one of them works on discrete and continuous value?

    Digital computer
    Micro computer
    Hybrid computer
    Analog computer
  • What is analog computer?

    one which measures continuous types of physical values such as temperature or pressure.


    which use parallel processing technology.


    which accepts descrete data


    which cannot do any types of tasks


  • What is digital computer?

    The computer which accepts discrete data.


    Which measure continuous types.


    which can parallel processing technology.


    which posses high processing speed.


  • What is hybrid computer?

    possess high operating speed.
    used for data processing.
    none of the above
    having features of both analog and digital computer.
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