Apple became the first company to reach a $3 trillion market valuation in 2022.
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The first computer mouse was made of wood — Douglas Engelbart built it in 1964.
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The first webcam was invented to check if a coffee pot in a Cambridge lab was full without walking downstairs.
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The concept of a touchscreen dates to 1965; the first commercially successful touchscreen phone was the iPhone in 2007.
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The Global Positioning System (GPS) uses a minimum of 24 satellites to provide worldwide coverage.
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A standard AA battery is enough to power a Wi-Fi router for about 5 hours.
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The light bulb made electric lighting widely practical.
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The printing of paper currency simplified trade.
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The fax machine was invented before the telephone.
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