HISTORY AND DEVELOPMENT OF COMPUTER The computer era

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HISTORY AND DEVELOPMENT OF COMPUTER

HISTORY AND DEVELOPMENT OF COMPUTER

The computer era is divided into three ages; 1. Dark age 2. Middle age

The computer era is divided into three ages; 1. Dark age 2. Middle age 3. Modern age

Devices Used in Dark age All computing devices of dark age are mechanical devices.

Devices Used in Dark age All computing devices of dark age are mechanical devices. � ABACUS : About 5000 years ago , it is invented in China and early marchants used the Abacus to keep trading transactions.

NAPIER BONES Napier Bones were invented by John Napier. This device is consisted on

NAPIER BONES Napier Bones were invented by John Napier. This device is consisted on eleven bones or rods with numbers.

SLIDE RULE An English Mathematician William Outhered created the slide rule which is based

SLIDE RULE An English Mathematician William Outhered created the slide rule which is based on Napier’s logarithms.

PASCALINE OR PASCAL’S CALCULATOR It is invented by Blaise Pascal. It is consisted on

PASCALINE OR PASCAL’S CALCULATOR It is invented by Blaise Pascal. It is consisted on a brass rectangular box, used eight movable dials to add numbers up to eight figures long.

LEIBNIZ’S CALCULATOR Gottfried Wilhem von Leibniz improved the Pascaline by creating a machine that

LEIBNIZ’S CALCULATOR Gottfried Wilhem von Leibniz improved the Pascaline by creating a machine that could also multiply. It worked by a system of gears and dials.

ARITHOMETER Charles Xavier Thomas de Colmar invented a machine that could perform four Basic

ARITHOMETER Charles Xavier Thomas de Colmar invented a machine that could perform four Basic arithmetic operations. It presenting a more practical approach with its enhanced verstality.

Devices Used in Middle Age These devices are powered by steam. They would stored

Devices Used in Middle Age These devices are powered by steam. They would stored program , could perform calculations and print the results. They also had the storage capacity.

Babbage’s Difference Engine Charles Babbage , father of Computer, noticed a natural connection between

Babbage’s Difference Engine Charles Babbage , father of Computer, noticed a natural connection between the machine and the mathematics. In 1822 , he proposed a machine to perform differential equation, called a Difference Engine.

Babbage’s Analytical Engine

Babbage’s Analytical Engine

Hollerith’s Tabulating Machine

Hollerith’s Tabulating Machine

MODERN AGE When Computer technology and Ideology was improved and the period was turned

MODERN AGE When Computer technology and Ideology was improved and the period was turned as Modern Age. The computer of this age are categorize in five generations.

UNIVAC

UNIVAC

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