History Of Computer
History of pc is split into 3 ages:
1. Dark Age
2. Middle Age
3. Modern Age
1. Dark Age:-
ABACUS changed into advanced in china in approximately 3000 BC. It is taken into consideration as“First Counting Machine”.
1st Computer” An abacus, additionally known as a counting frame, is a calculating device used broadly speaking in parts of Asia for acting mathematics processes”
II) PASCAL’S CALCULATOR:-
In 1642 Blaise Pascal a French mathematician invented a mechanical system which changed into succesful to carry out additions & subtractions.
III) LEIBNIZ CALCULATOR:-
In 1671 a German Philosopher Von Leibniz invented a system which changed into succesful to carry out
additions, subtractions, multiplications & divisions.
IV) BABBAGE’S DIFFERENCE ENGINE:-
In 1822 Charles Babbage made a system recognised as “BABBAGE DIFFERENCE ENGINE” which changed into succesful to resolve easy formulas & calculations. Charles Babbage changed into the primary man
who offers the concept of pc that‟s why he’s recognised as “Father of Computer”.
This engine can carry out 60 additions in keeping with minute.
2. Middle Age:-
In 1890 an American Statistician Hermon Hollerith invented a Punch Card &
Punch Card analysing system to manner the sensus data. It changed into an electro-mechanical device. In 1911 Hollerith invented any other system which changed into successful to type Punch Card.
3. Modern Age:-
In contemporary-day age an American Professor Howard Aiken of Harvard university
advanced an automated calculating system “MARK-I” in 1944. It changed into first electro-mechanical
pc wherein all inner operations had been done automatically. This pc followed
the Babbage pc concept.