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300
counting with fingers
The very first calculating device used was the ten fingers osf a hand. -
Period: 300 to
abacus
The abacus was invented, a bead frame in which the beads are moved from left to right. -
J. Napier
J. Napier, a Scotsman, devised a mechanical way of myltiplying and dividing, which is how the modern slide rule works. -
Napier
John Napier, a Scotsman, devised a machanical way of multiplying and dividing, which is how the modern slide rule works. -
Briggs
Henry Briggs used Napier´s ideas to produce logarithm tables which all matheaticians use today. -
The first real calculating machine
The first real calculating machine appeared as a result of several people´s experiments. -
Charles Babbbage
Charles Babbage designed a machine that was called "The analytical Engine" -
The first analog computer
In 1930 the first analog computer was built by an American named Vannevar Bush -
The first digital computer
The men responsible for this invention were Professor Howard Aiken and some people fro IBM -
Eckert and Mauchly
These engineers built the first digital computer using parts called vacuum tubes at the University of Pennsylvania. -
John Newmann
He developed the idea of keeping instuctions for the coputer inside the computer´s memory. -
The first generation of computers
The first generation of computers, which used vacuum tubes, came out in 1950. Univac is an example of these computers which could perform thousands of calculations per second. -
Second generation of computers
They could perfom word ten tiemes faster than their predecessors. -
Third generation of computers
These computers could do a million calculations a second. -
Sir Isaac Newton and Leibnitz
Calculus, another branch of mathematics, was independently invented by both Sir isaac Newton, and Englishman, and Leibnitz, a German mathematician.
