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First computer ever invented, made by the US Army.
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Microwave oven uesed to heat food, which we still use today.
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First recording of image and sound.
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First nuclear power reactor, in the US in Idaho.
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First hard disk for computer.
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First computer video game.
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First handheld calculator
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First Food processor
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First cell phone
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World Wide Web- www or internet.
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First time Web TV was created.
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YouTube videos on line world wide