Page 9 - Computer Class 04

Pascaline

Blaise Pascal, a French mathematician invented a

mechanical computer called Pascaline. It reproduced

information in an organised
manner. This device used a

series of toothed wheels, which

were turned by hand and which
would handle numbers upto Pascaline

Blaise Pascal 999,999.999.

Leibinz Calculator

It was an improvement on Pascal’s
machine. It was improved by Leibinz, a

famous German mathematician. It could

perform multiplication, division and
square roots apart from addition and

subtraction.
Leibinz Calculator
Analytical Engine

Analytical Engine was designed by Charles Babbage. It
contained an Arithmetic Logic Unit (ALU), basic flow

control, punch cards and integrated memory. It was the

first general-purpose computer concept. This machine
had all the basic features still found in all modern

computers. Charles Babbage

For giving the idea of the Analytical Engine,
Charles Babbage is known as the ‘Father of

Computer’.

Analytical Engine

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