Development of Computers

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Many people do not realise that computing devices were created long before the modern computers. Here are a few examples:

The Antikythera mechanism (/ˌæntɪkɪˈθiːrə/ ANT-i-ki-THEER-ə or /ˌæntɪˈkɪθərə/ ANT-i-KITH-ə-rə) is an ancient Greek analog computer and orrery used to predict astronomical positions and eclipses for calendar and astrological purposes decades in advance.