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Computer Skills 1

Computer Skills 1. Ch. 3. Computer Classification. Discussion. Computer Classification : Size Data Handled Purpose of Use. 1. Size. Microcomputers, or Personal Computers : These computers use a microprocessor chip instead of CPU.

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Computer Skills 1

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  1. Computer Skills 1 Ch. 3 Computer Classification

  2. Discussion • Computer Classification: • Size • Data Handled • Purpose of Use

  3. 1. Size • Microcomputers, or Personal Computers : • These computers use a microprocessor chip instead of CPU. • types of these computers are laptop or Desktop computers • Only one user uses these computers at time that's why they are also known as personal computers.

  4. 1. Size • Minicomputers: • These are powerful computer • A mini computer is smaller than a mainframe but larger than a Microcomputer. • Minicomputers can be used by several people at the same time • The more users the slower it gets. • Examples of Minicomputer : • MAI Basic4 #Data General Nova • Prime Computer Prime 50 #DEC PDP and VAX Series • Wang Laboratories 2200 and VS Series

  5. Minicomputers

  6. 1. Size • Mainframe Computers : • It as a very powerful and large computer. • handle processing of many users at a time. • Terminals are used to connect a user to this computer and users submit there task through mainframe. • Terminal is a device which has keyboard and a screen. • By using terminal users put inputs into the computer and get the output through screen.

  7. 1. Size • Mainframe Computers : • They are used in large companies,  airlines, banks government departments, telephone companies , etc., •  These are faster and more sufficient than Minicomputers and have a much large storage capacity.

  8. 1. Size • Supercomputers : • A supercomputer is the largest, fastest and most expensive • These computers are used for forecasting the weather, nuclear energy, research, etc.

  9. 2. Data Handled • Analog computers: • they are used to process continuous data. • An analog computer computes by measuring changes in a continuous physical phenomenon such as electronic voltage, length, current, temperature, pressure, etc.  • Analog computers are very much speedy. • They produce their results very fast. But their results are approximately correct. • All the analog computers are special purpose computers.

  10. Analog computers

  11. 2. Data Handled • Digital • Digital computer represents physical quantities with the help of digits or numbers. • These numbers are used to perform Arithmetic calculations and also make logical decision to reach a conclusion, depending on, the data they receive from the user.

  12. 2. Data Handled • Hybrid (Analogue & Digital) • Various specifically designed computers are with both digital and analog characteristics. • The hybrid computer uses both the analog and digital components. • These computers use digital memory for the storage and analog devices for computational purpose.

  13. 3. Purpose of Use • General Purpose (i.e. Digital data) • General-purpose computers are designed to solve a large variety of problems. • Most digital computers are general computers. • they are used in business and commercial data processing. • Special Purpose (i.e. Analogue data) • Special purpose computers are designed to solve a specific problems • Moat analogue computers are special purpose computers. • They are often used as training simulators.

  14. Thank you! Questions?

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