Basic HTML Version

|  | Table of Contents |  | View Full Version

Page 79 - 2610_Springdales_C-4
P. 79

    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’.

                     LADY ADA LOVELACE’S PROGRAMS                                                      Analytical Engine

                     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.

                                                                                                Evolution of Computers
                                                                                                                        77

| 74 75 76 77 78 79 80 81 82 83 84 |