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Presenting by:

Miss Sidra Bibi

Fazaia Inter College, Kohat

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How Many Types Of Computer Are There?

There are two types of computer

Computer sizes and power

Personal Computer Types

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Supercomputer Minicomputer Workstation

Types Of Computer According to

Personal computer

Mainframe

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Laptop computer

Minicomputer Workstation

Personal computer

Mainframe

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ANALOG COMPUTERS

Computers that process analog data are called analogcomputers. (Analog data is continuous)

Computers that accept analog input and provide

analog output.

Deal with variables.

It is used for measuring physical quantities.

Special purpose computers.

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Examples

Speedometer

Weig ht machine

Ther mometer

Analog watch

http://www.google.com.pk/imgres?imgurl=http://www.websters-online-dictionary.org/images/wiki/wikipedia/commons/f/fd/Analog_watch_2.jpg&imgrefurl=http://www.websters-online-dictionary.org/definitions/Analog%2520Watch&h=279&w=206&sz=21&tbnid=zZhVURphxLxHFM:&tbnh=223&tbnw=164&prev=/search%3Fq%3DPICS%2BOF%2Banalog%2Bwatch%26tbm%3Disch%26tbo%3Du&zoom=1&q=PICS+OF+analog+watch&hl=en&usg=__NMtyBbGjeDJQVJCMAQ2hQ3iM7HU=&sa=X&ei=RkuyTcblEc_F8QOIt7mVDA&ved=0CBkQ9QEwAAhttp://www.google.com.pk/imgres?imgurl=http://www.websters-online-dictionary.org/images/wiki/wikipedia/commons/f/fd/Analog_watch_2.jpg&imgrefurl=http://www.websters-online-dictionary.org/definitions/Analog%2520Watch&h=279&w=206&sz=21&tbnid=zZhVURphxLxHFM:&tbnh=223&tbnw=164&prev=/search%3Fq%3DPICS%2BOF%2Banalog%2Bwatch%26tbm%3Disch%26tbo%3Du&zoom=1&q=PICS+OF+analog+watch&hl=en&usg=__NMtyBbGjeDJQVJCMAQ2hQ3iM7HU=&sa=X&ei=RkuyTcblEc_F8QOIt7mVDA&ved=0CBkQ9QEwAAhttp://www.google.com.pk/imgres?imgurl=http://www.websters-online-dictionary.org/images/wiki/wikipedia/commons/f/fd/Analog_watch_2.jpg&imgrefurl=http://www.websters-online-dictionary.org/definitions/Analog%2520Watch&h=279&w=206&sz=21&tbnid=zZhVURphxLxHFM:&tbnh=223&tbnw=164&prev=/search%3Fq%3DPICS%2BOF%2Banalog%2Bwatch%26tbm%3Disch%26tbo%3Du&zoom=1&q=PICS+OF+analog+watch&hl=en&usg=__NMtyBbGjeDJQVJCMAQ2hQ3iM7HU=&sa=X&ei=RkuyTcblEc_F8QOIt7mVDA&ved=0CBkQ9QEwAAhttp://www.google.com.pk/imgres?imgurl=http://www.websters-online-dictionary.org/images/wiki/wikipedia/commons/f/fd/Analog_watch_2.jpg&imgrefurl=http://www.websters-online-dictionary.org/definitions/Analog%2520Watch&h=279&w=206&sz=21&tbnid=zZhVURphxLxHFM:&tbnh=223&tbnw=164&prev=/search%3Fq%3DPICS%2BOF%2Banalog%2Bwatch%26tbm%3Disch%26tbo%3Du&zoom=1&q=PICS+OF+analog+watch&hl=en&usg=__NMtyBbGjeDJQVJCMAQ2hQ3iM7HU=&sa=X&ei=RkuyTcblEc_F8QOIt7mVDA&ved=0CBkQ9QEwAAhttp://www.google.com.pk/imgres?imgurl=http://www.websters-online-dictionary.org/images/wiki/wikipedia/commons/f/fd/Analog_watch_2.jpg&imgrefurl=http://www.websters-online-dictionary.org/definitions/Analog%2520Watch&h=279&w=206&sz=21&tbnid=zZhVURphxLxHFM:&tbnh=223&tbnw=164&prev=/search%3Fq%3DPICS%2BOF%2Banalog%2Bwatch%26tbm%3Disch%26tbo%3Du&zoom=1&q=PICS+OF+analog+watch&hl=en&usg=__NMtyBbGjeDJQVJCMAQ2hQ3iM7HU=&sa=X&ei=RkuyTcblEc_F8QOIt7mVDA&ved=0CBkQ9QEwAAhttp://www.google.com.pk/imgres?imgurl=http://www.websters-online-dictionary.org/images/wiki/wikipedia/commons/f/fd/Analog_watch_2.jpg&imgrefurl=http://www.websters-online-dictionary.org/definitions/Analog%2520Watch&h=279&w=206&sz=21&tbnid=zZhVURphxLxHFM:&tbnh=223&tbnw=164&prev=/search%3Fq%3DPICS%2BOF%2Banalog%2Bwatch%26tbm%3Disch%26tbo%3Du&zoom=1&q=PICS+OF+analog+watch&hl=en&usg=__NMtyBbGjeDJQVJCMAQ2hQ3iM7HU=&sa=X&ei=RkuyTcblEc_F8QOIt7mVDA&ved=0CBkQ9QEwAAhttp://www.google.com.pk/imgres?imgurl=http://www.websters-online-dictionary.org/images/wiki/wikipedia/commons/f/fd/Analog_watch_2.jpg&imgrefurl=http://www.websters-online-dictionary.org/definitions/Analog%2520Watch&h=279&w=206&sz=21&tbnid=zZhVURphxLxHFM:&tbnh=223&tbnw=164&prev=/search%3Fq%3DPICS%2BOF%2Banalog%2Bwatch%26tbm%3Disch%26tbo%3Du&zoom=1&q=PICS+OF+analog+watch&hl=en&usg=__NMtyBbGjeDJQVJCMAQ2hQ3iM7HU=&sa=X&ei=RkuyTcblEc_F8QOIt7mVDA&ved=0CBkQ9QEwAA

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Applications

Engineering

Scientific Work

To control process Chemical industries

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ADVANTAGE & DISADVANTAGES OFANALOG COMPUTER

ADVANTAGE OF ANALOG COMPUTERS Analog computers are fast.

DISADVANTAGES OF ANALOGCOMPUTERS

Analog computers are not accurate.

Analog computers lack memory.

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DIGITAL COMPUTERS

Computers that process digital data are called digitalcomputers.(Digital data is discrete)

Computers that accepts digital input and provide digitaloutput.

Measure digital quantities.

General purpose.

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Examples

Calculators Accounting machines

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Applications

Scientific research Business

Education Factories Market Art

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ADVANTAGES & DISADVANTAGES OFDIGITAL COMPUTERS

ADVANTAGES OF DIGITAL COMPUTERS Digital computers are accurate.

Store information.

DISADVANTAGES OF DIGITAL COMPUTERS Digital computers are slow as compared to Analog

computers.

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HYBRID COMPUTERS

Computers that processanalog as well as digitaldata are called hybrid

computers.

Special purpose.

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ADVANTAGES OF HYBRID

COMPUTERS

It combines the best features of both

digital and analog.Hybrid computers have the accuracy of

analog and speed of digital computers

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Applications

In hospitals

In Air Defence system

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Types Of Computer According To Size

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MAINFRAME COMPUTERS

Large in size.

Fill a large room

Number of devices are

attached with it.

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MAINFRAME COMPUTERS

Expensive

Large in memory

Powerful

Used in large organizations

Perform multiple jobs

Support hundred of users

Need air conditioned rooms

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MINI COMPUTERS

As compared to mainframe,mini computers are:

Small in size. Occupy small room.

Less peripheral devices.

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MINI COMPUTERS

Less Expensive

Small in memory

Less Powerful Used in small organizations

Perform multiple jobs

Support fewer users

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MICRO COMPUTERS

Basis of micro computer ismicro processor

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MICRO COMPUTERS

As compared to mainframe and mini computers, microcomputers are:

Smallest in size

Placed on the top of desk thats why called desktopcomputers.

Laptop is microcomputer

Personal Computers (PCs)

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Least Expensive

Smallest in memory

Least Powerful

Used in small business, schools, homes

Support one users

MICRO COMPUTERS

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SUPER COMPUTERS

Complex machines

Use advance techniques

High speed

Large in size High computing capacities (number crunchers)

Require air-conditioned rooms

Perform calculations

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Applications

Weather forecasting

Nuclear research

Designing complex

machines.

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Analog Digital Hybrid

Summary

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Questions

What are names given to the types of computer according to work?

Differentiate between special purpose

computer and general purpose computer. Name any two areas, where mini

computers are used.

List any three characteristics of super computer.

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Home work

Compare and contrast the difference

between an analog and digital computer.

Describe some of the features of mini and

micro computers

Revise all the points.

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