HISTORY OF THE COMPUTER

 HISTORY OF THE COMPUTER

·     ABACUS:

     The first calculating machine ABACUS was developed by the Chinese. It is still being used in Russia and Japan.

·        ANALOG MACHINE: 

          The Scottish mathematician, John Napier developed a device called Napier’s bone analog machine around 1617. All arithmetic operations can be performed with the help of the machine.

·    ODOMETER: 

        It is called as speedometer. Along with basic arithmetic operations logarithms can be worked out.

·  MACHANICAL CALCULATOR: 

     The first mechanical calculator was made by the French mathematician Blaize pascal in 1642. It is a simple calculator used for addition and subtraction purposes. Later Leibnitz calculator was designed by Gottefried Leibnitz in 1671. It can be used for addition, subtraction, multiplication and division.

DIFFERENCIAL ENGINE: 

    Father of modern digital computers, Charles babbage, an English mathematician, proposed to Built a general purpose problem solving machine, in 1833.The machine called as analytical engine was designed to perform all the five basic data processing operations namely input, storage, control, process and output.