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Alexander Graham Bell was awarded the first U.S. patent for the invention of the telephone
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designed a telephone using a water microphone in Highland Park
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Tivadar Puskás invented the telephone switchboard exchange
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Pay phones where crated by William Gray
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The first person who made the computer was Charles Babbage
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Period: to
History of computers
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Computer where crated for mathematical reasons
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Cell phones where crated by Martin Cooper
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the first mobile telephone call from handheld subscriber equipment
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Computers are helpful
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Games where added to the computers for entertainment
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Apps came out on cell phones for entertanment