Basic HTML Version

|  | Table of Contents |  | View Full Version

Page 12 - 2505_CoreGPT(Podar)_Flipbook_C5
P. 12

    COMPUTER GENERATIONS

                      After these early calculating machines, the present computer took its shape in five
                      generations.

                      First Generation (1940s)

                      There were many computers that were a part of the first generation computers.

                      MARK-I

                      In 1944, Prof. Howard Aikens built the first electro-mechanical powered computer
                      named Mark-I. It used punched cards and a typewriter for input and output. It
                      was 50 feet long, 8 feet high, weighed 5 tons and could perform operations like

                      addition,  subtraction,  multiplication, division and  referring  to  previous  results.
                      Mark-I was much more reliable than early electronic computers.

                                                                     Mark-I
                      ENIAC

                      Electronic  Numerical Integrator and Computer,  was  the  first  electronic

                      general-purpose digital computer, built in 1946 by John Mauchly and Presper
                      Eckert. It contained over 18,000 vacuum tubes and was 1000 times faster than
                      Mark-I. ENIAC consumed almost 200 kW of power. It had no internal storage and

                      required frequent maintenance.

                                                                               Clickipedia

                                                                                 The  first  electronic  computer
                                                                                 ENIAC weighed  more than  27

                                                                                 tons and took up 1800 square
                                                                                 feet.
                                            ENIAC

                     10     Premium Edition-V

| 7 8 9 10 11 12 13 14 15 16 17 |