History of computer
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Transcript of History of computer
F R O M A B D U L L A H Z I A
4F SCARSDALE INTERNATIONAL
SCHOOL
HISTORY OF COMPUTER
People in old times used to count on their fingers.
After some time people stopped counting on fingers and started counting on stones
People counting on stones
Abacus was first calculating machine made by the Chinese about 5000years ago.
Abacus
Pascal Arithmetic machine
Some years later in1642 a young French mathematician named Blaise Pascal was working in his fathers office. He invented Pascal's arithmetic machine.
Babbage Engine
The first calculating machine that can be truly called a computer was invented in England by Charles Babbage in 1835.
Tabulating machine
Herman Hollerith worked at the census bureau in 1880s he wanted to come up with a better way to count population so he invented the tabulatingmachine
Napiersbone
Napiers bone was a very good calculating machine at the old time it a good machine now also but no one, buys it