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Categories of Computer


                   and Computer Languages



                                                                                   Chapter
                                                                                   01






                                   Your Aim

                                   to learn about:

                                      Categories of Computers             Some Other Special Computers
                                     Computer Languages                  Language Translator

                                      Working of Language Translators

                 As you know, a computer is an electronic device used in different places for different purposes,
                 such as managing accounts in schools and reading at home. You have also learnt about computer
                 programs and programming in the previous class. In this chapter, you will learn about the different
                 types of computers and computer languages.

                     CATEGORIES OF COMPUTERS

                 The different types of computers are used for various purposes and they can be categorised on
                 the basis of their:
                    Type                     Purpose                     Size, speed, processing power, and cost
                 Let us learn about these categories in detail.
                 Type

                 On the basis of their type or functioning, computers can be classified into three categories, which
                 are as follows:

                    Analog: It refers to a computer that operates by measuring instead
                    of counting. It measures continuously changeable physical quantities
                    like  voltage,  pressure,  water  flow,  etc.  This  type  of  computer
                    generally displays the output in the form of a graph. Examples of
                    analog computers are analog thermometers, speedometers in cars,
                                                                                                 An Analog Computer
                    old radios, etc.

                                          Digital: It refers to a computer that uses digits (binary numbers 0’s and
                                         1’s) to generate, process, and display data. The results produced by digital
                                         computers are more accurate than those of analog computers. All the
                                         modern computers that we use, like desktops, laptops, and smartphones
                                         are the examples of digital computers. Digital watch, digital thermometer,
                                         electricity meter, etc., are also called digital computers.
                 A Digital Computer


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