VISUAL HISTORY OF COMPUTING

 
 

I.    Early civilizations' contributions

        A.    Fingers and eventually counting boards or rope knots

        B.    Babylonians

        C.    Egyptians

        D.    Greeks

                                        Pythagoras

        R.    Romans

                Roman numerals example

                                       Caesar cipher

        E.    Chinese and Indian influences

               1.    First computing machine - the abacus, 5000 years ago

            2.    Indians are credited the the decimal notation
II.    Early computing machines
A.    Leonardo DeVinci's adding machine design (1425-1519)


DaVinci machine contructed
    C.    Blaise Pascal's Pascaline  (1623-62)
D.    Wilhelm Von Leibniz - (1646-1716)

        His stepped reckoner (could multiply and divide)


E.    Jacquard's punch card loom   (1752-1834)

  actual punch card for loom 

F.  Charles- Xavier Thomas 1820  Arithometer

                Arithometer    

G.    Charles Babbage (1791-1871)  - The Difference Engine

    H.    Lady Ada August Lovelace  (nee Byron)     (1815-52)  -
           world's first programmer
    I.    Herman Hollerith (1860-1929)  Census machine - patented 1889

II.    True computers

        A.    IBM's MARK I - 1942

                 1.    MARK I's


                    2.    The MARK II

B.    The ENIAC - 1946

            Utilized vacuum tubes

        C.    Alan Turing

                            Turing photo

        D.    UNIVAC I - 1950s
 
        E.    IBM 650
 


                    Two console units and a read-punch unit

        F.    The minicomputer  - PDP-8  - 1965

        G.    Microprocessor - Intel - 1970s




H.  Pocket calculator

I.    IBM Portable Computer
J.    Personal Computer
K.    Laptop Computer
L.    Wearable computing

              wearable computing - wrist


M.    Cray Super Computing