history of computers
DESCRIPTION
this tells about historyTRANSCRIPT
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HISTO
RY OF
COMPUTE
RS
AH
SA
N
4F
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SINCE THE EARLISET TIMES PEOPLE USED THEIRFINGERS TO SHOW HOW MANY
THUS THEY COULD TELL THE NUMBER OF ANMALS
ON HUNT. THEY COULD SHOW THE NUMBER OF PEOPLE
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THE ABACUS
The abacus was the first calculating machine
It was developed by the Chinese about 5000
Years ago
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NAPIER'S BONE
IN 1617, JOHN NAPIER,S MATAHMATICAN FROM
SCOTALAND, INVENTED CALULATINGRODS CALLED
NAPIER,S BONE
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PASCAL,S ARTIHMETIC MACHIN
SOME YEARS LATER IN 1642, a youg freanch
Mathamatican named pacals
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INSIDE VIEW PACAL,S MACHINE
When a wheel made a complete turn from 1 to 9 ,a small cut
Causd the next to left to move up 1 number
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BABAGE ENGINE
The first calculating machine that can be truly
Called acomputer was invented in ing land by
Chares babage in 1835
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