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Difference Engine is the first form of calculator ,which was invented by Charles Babbage
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machine that could asses mathematical formulas and use punch cards
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Vacuum is used to stuck dust usually from floors. It was first invented by nvented by Ives McGaffey
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invented in Japan
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Air conditioner is used to cool atmosphere , by releasing fresh air .
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Fist invented by John Logie
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A Turing machine is a theoretical device that manipulates symbols on a strip of tape according to a table of rules
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Flowers came up with the idea of using more than 1800 valves (vacuum tubes) to make an electronic system that could decipher codes used by the Germans during World War II
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The microwave oven was invented by Dr. Percy Spencer in Waltham
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social network
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cell phone but can be use not only for communication it offer multy function use
