November 29, 2010

 Analog Computers

Analog computers used relational method of comparison for processing the data. An analog computer works in parallel, it can carry out multiple tasks simultaneously. Analog computer can work both mechanically and electronically. Recent and common mechanical analog computer is the slide rule. But today’s problems of computing require processing involving numerical calculations and logical Analysis. The people tried to develop the computers having both the features of digital as well as analog.



November 21, 2010

 Leibniz




The German philosopher and mathematician Gottfried Leibniz built a Mechanical device that could both multiply and divide. He improved Pascal's machine in 1671. The machine was able perform all the four basic mathematical operations like addition, subtraction, multiplication and division. The draw back of this machine was that it was very slow.


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