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The abacus is an early calculating device the creation of which is credited to china.
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Eniac was the first programable computer. The device wieghed 30 tons and 50 feet long.
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The first cellphone was created by Martin Cooper. The Invention weighed 2.5 pounds and was 10 inches long. The battery life was 4 hours long.
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The first Laptop was invented by Adam Osborne. It weighed 23.6 pounds and had a 5 inch screen.
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The first smart phone was credited to IBM in 1994. It had a built in sketch pad, calculator, and other apps.
