Thursday, May 27, 2010
History of computers
The very first calculating device used was the ten fingers of man's hands, then the abacus was invented. During the 17th and 18th centuries many people tried to find easy ways of calculating. J.Napier, a scotsman devised a mechanical way of multiplying and dividing., which is how the modern slide rule works. Henry Briggs used J. Napier's ideas to produce logarithm labels. Calculus was independently invinted by both Sir Isaac Newton, an Englishman, And Leibnitz, a German Mathematician.
The first rea calculating meachine appeared in 1820. This type of machine depends on a series of ten-toothes gear wheels. In 1830 Charles Babage, designed The Analytical Machine. This machine was an attempt to cut out the human being altogether, except for providing the machinewith the necessary facts about the problem to be solved.
In 1930, the first analog computer was built by an American, Vannevar Bush. This device was used in world war ll to helps ain guns. Mark l, the first digital computer, was complete in 1944 by Professor Howard Aiken and some people from the IBM. This was first machine that could figure out long lists of mathematical problems, all at a very fast rate. In 1946 J. Eckert and J. Mauchly, built ENIAC, the first digital computer using parts called vacuum tubes. Another important advancement in computers came when John von Newman developed the idea of keeping instructions for the computer inside teh computer's memory.
The first deneration of computers came out in 1950. In 1960, the second generation of computers was developed. The third generation of computers appeared on the market in 1965. These computers could do a million calculations a second, which is 1000 times as many as first-generation computers
The first rea calculating meachine appeared in 1820. This type of machine depends on a series of ten-toothes gear wheels. In 1830 Charles Babage, designed The Analytical Machine. This machine was an attempt to cut out the human being altogether, except for providing the machinewith the necessary facts about the problem to be solved.
In 1930, the first analog computer was built by an American, Vannevar Bush. This device was used in world war ll to helps ain guns. Mark l, the first digital computer, was complete in 1944 by Professor Howard Aiken and some people from the IBM. This was first machine that could figure out long lists of mathematical problems, all at a very fast rate. In 1946 J. Eckert and J. Mauchly, built ENIAC, the first digital computer using parts called vacuum tubes. Another important advancement in computers came when John von Newman developed the idea of keeping instructions for the computer inside teh computer's memory.
The first deneration of computers came out in 1950. In 1960, the second generation of computers was developed. The third generation of computers appeared on the market in 1965. These computers could do a million calculations a second, which is 1000 times as many as first-generation computers
Subscribe to:
Post Comments (Atom)
0 komentar:
Post a Comment