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Evolution of Computers



                                                                                  Chapter
                                                                                   01


                                  Your Aim


                                  to learn about:
                                     History of Computers
                                     Computer Generations
                                     Characteristics of a Computer

                                     Limitations of a Computer


                 Dear Students, You have learnt about computers in your previous class.
                 It is a familiar word for you today. But have you ever thought, “Who invented the
                 computer?” This machine is the result of the work of many minds. No single person
                 can be credited with the invention of computers, but several names stand out in
                 the crowd.


                     HISTORY OF COMPUTERS

                 So far, you have learnt about the various uses of the computer. You have also learnt
                 that the computer is a powerful device and can be used to accomplish a variety
                 of tasks. In the past, a great deal of research was conducted to develop a powerful

                 machine. In this chapter, you will learn about the scientists who were responsible
                 for creating the effective device you use in your everyday life.

                 Early Counting Tools

                 Since ancient times, people have invented tools for calculations. Early humans tied
                 knots in ropes and carved marks on clay to keep records. They also used fingers,
                 toes, pebbles, stones, sticks, knotted strings, and bones to count.












                                                        Early Counting Tools




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