Basic HTML Version

|  | Table of Contents |  | View Full Version

Page 50 - 2617_JSSPS_C-4
P. 50

    In 1833, he invented a machine called the Analytical Engine,
                  the first-ever working model of a mechanical computer, a fully

                  program controlled machine. This is why Charles Babbage is
                  known as the ‘father of computers’.

                                                                                                     Analytical Engine
                  LADY ADA LOVELACE’S PROGRAMS

                  The instructions given to Babbage’s Analytical Engine were in the
                  form of 0s and 1s and the first person to introduce this concept was

                  Lady Ada Lovelace. Since she was the first to introduce the concept
                  of programming, she is known as the first computer programmer.

                  GENERATIONS OF COMPUTERS

                                                                                                       Lady Ada Lovelace
                              Generations                                           Features

                                                            Huge in size

                    First Generation      (1940s)           Very expensive
                                                            Made up of vacuum tubes

                                                            Made up of transistors
                                                            Magnetic tapes were used to store data
                    Second Generation  (1950s)              Small in size and less expensive than
                                                           the first generation computer

                                                            Faster and reliable

                                                            Computers were made of ICs
                                                            Use of the ICs reduced the size and
                    Third Generation      (1960s)
                                                           increased the speed of the computers
                                                            More affordable and dependable

                                                            Microprocessors were invented

                                                            Small in size and could be placed on an
                    Fourth Generation  (1970s)             office table
                                                            Hard disk to store data
                                                            Introduction of GUI operating system

                                                            Use artificial intelligence

                                                            Improved size, cost, speed and
                    Fifth Generation        (1980s–        performance
                                          Present)
                                                            New versions of GUI operating
                                                           systems are developed.

                            Premium Edition-IV
                     48

| 45 46 47 48 49 50 51 52 53 54 55 |