Students read a details of different types of computer.     

           Types of computer

     1. Mainframes                                                         

        - Large,powerful,expensive.

        - Multi-use systems-used by many people at the same time.

        - Use for processing very lage amounts of data.

        - The most powerful mainframes are called supercomputer.

    2. Minicomputers

        - Used like mainframes.

        - Not as big, powerful, or expensive as mainframes.

        - Less common now because microcomputers have improved.

    3. Microcomputer or Personal computers (PCs)

        - The most common type of computer.

        - Smaller,cheaper,and less powerful than mainframes and

           minicomputers.

                 Types of  computer

    1. Laptop

       - About the size of a small typewriter.

       - Less common now because smaller and lighter portable

         are available.

   2. Notebook

       - About the size of a piece of writing paper.

       - The most common type of portable.

   3. Subnotebook

       - Not quit as big as notebooks. Can fit into a jacket pocket.

   4. Handheld or Palmtop

       - Small enough to fit into the palm of one hand.

       - Not easy to type with because of their size.

       - Often used as personal organizers.

    Task:Choose the correct answers to these questions.

             Which type of computer is :

     1. The most common?

         Answer:.....................................................................................................

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     2. Small enough for a pocket?

         Answer:.....................................................................................................

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     3. The most common portable?

         Answer:.....................................................................................................

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     4. Use by many people at the same time?

         Answer:.....................................................................................................

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     5. Used like mainframes?

         Answer:.....................................................................................................

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     6. Also called a handheld computer?

         Answer:.....................................................................................................

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     7. The most powerful?

         Answer:.....................................................................................................

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     8. Not suitable for a lot of typing?

         Answer:.....................................................................................................

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