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British mathematician and inventor Charles Babbage designs and attempts to build the first mechanically operated computer, which he called the analytical machine
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German engineer Konrad Zuse completes the Z1, the first computer that can be considered as such.
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ENIAC was invented, the first electronic computer, built in Pennsylvania to calculate artillery tables
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UNIVAC was designed by Eckerd. I used vacuum tubes. First generation of computers. 
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Second generation computers were fast and small, new languages called high-level languages
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Penultimate generation of computers. With parallel processing capacity.
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Latest generation of computers, windows is created