Q. World's first microwave oven is invented in

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Q. Transistors used in all modern electric products was invented in

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Q. 'DVD' was invented and developed by

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Q. DVD was invented and developed in

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Q. First personal computer controlled with a keyboard was invented in

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Q. The first personal computer controlled with a keyboard is

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Q. First personal computer controlled with a keyboard was invented by

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Q. Chester Floyd Carlson invented the photocopier in

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Q. First freely programmable computer in the world was built in

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Q. First freely programmable computer in the world was built by

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Q. The 'QWERTY' design type writers and computers keyboards is invented in

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Q. The 'QWERTY' design type writers and computers keyboards is invented by

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Q. First ever solar battery was invented by Bell Telephone scientists in

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Q. First ever solar battery was invented by Bell Telephone scientists named

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Q. First solar cell was invented by

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Q. First car made with Teetor's cruise control method was the

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Q. Name of the first popular web browser is

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Q. First popular web browser was introduced in

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Q. The World Wide Web was first publicly introduced in

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Q. The World Wide Web was publicly introduced for the first time by computer scientist, named

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