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  First Freely programmable computer
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  They created the first computing machine to use electricity, vacuum tubes, binary numbers and capacitors.
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  Howard Aiken and Grace Hopper designed the MARK series of computers at Harvard University.
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  20,000 vacuum tubes later, a computer for calculating artillery-firing tables, the settings used for different weapons under varied conditions for target accuracy
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  memories were turned on
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  Transistors transformed the world of electronics and had a huge impact on computer design which allowed for less power to be used
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  high level programming language
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  the chip
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  first computer game invented
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  microprocessor invented as well in the same year the floppy disk
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  networking became available
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  first word processor
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  operating system and computer revolution was invented in the same year
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  The first home computer with a GUI, graphical user interface.
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  more affordable mcintosh
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  Microsoft begins the friendly war with Apple.