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In 1939, Charles Barbaje's Analytical Engine was created.
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In 1942, "Pascalina" was created, which was a mechanical calculator.
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1944, Aiken Mark I machine created.
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1948, W. Dhockley transistors are created.
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1951, Univac computer created.
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1958, The second generation of computers using transistors is created.
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1960-1970 The third generation with integrated circuits is created.
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1971, The first microprocessor for personal computers of the fourth generation appears.
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1973, The Xerox company creates the first computer.
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1976, Steve Jobs creates the first Apple computer.
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1984, Apple's Macintosh, the first fifth-generation computer, is created.
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1985, Apple and Microsoft software begin to be distributed with the first CD-ROOMs.
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1991, the first free LINUX software appears.
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1993, the Internet is created.