The IBM Simon Personal Communicator (simply known as IBM Simon) is a handheld, touchscreen PDA designed by International Business Machines (IBM), and manufactured by Mitsubishi Electric. Although the term “smartphone” was not coined until 1995, because of Simon’s features and capabilities, it has been retrospectively referred to as the first true smartphone.
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Salyut 1
invented by Soviet Union
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invented by Theodor Kober
A Zeppelin is a type of rigid airship named after the German inventor Count…
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