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    01                 EVOLUTION OF COMPUTERS

                                    Learning Outcomes

                       •  Early Counting Tools                                 •  Abacus—First Calculating Device
                       •   Charles Babbage’s Analytical Engine                 •   Lady Ada Lovelace’s Programs
                       •  ENIAC—The First Electronic Computer                  •    UNIVAC
                       •  IBM PC                                               •  Modern Computers

                               My grand mom is coming to                              Oh that would be so exciting.
                               meet me after so many months.                          She will tell us about devices of
                                                                                      her time.

                      I would love to meet her.                               I believe there has been great
                                                                              changes in technology since her
                                                                              time.

                               Sure! We will ask her about her
                               past experiences.                                      Yes, you are right.

                     Have you ever thought how the computer that we use today evolved? What was

                     the name of the first computer that came into existence? Let us find the answers of
                     these questions in this chapter.

                                                                                    Evolution of Computers       7

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