November 21, 2010

 Analytical Engine


Charles Babbage


The famous English man Charles Babbage built a mechanical machine to do complex mathematical calculations. It was called difference engine. Which would compute and check the tables but the engine was of limited use. Later he developed a general-purpose calculating machine called analytical engine. his could do arithmetic calculations very fastly. You know that Charles Babbage is called the father of computer.




The analytical engine could perform following functions :
(a) All Arithmetic Operations
(b) Instructions & data fed to computer in advance.
(c) Store intermediate results
(d) Capable of taking logical decisions.



 Pascal's Calculator



The French scientist Blaise Pascal developed a machine at the age of 19 that could add and subtract. He developed the first real calculating machine, which could add numbers by using wheels, gears and cylinders. All the mechanical calculators developed later were based these ideas.


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