The Antikythera Mechanism is the world’s first analogical computer designed in 100 B.C. The size of this is approx. 1 foot x 6 inches x 4 inches (31 cm x 15 cm x 10 cm). It is recovered from a shipwreck off the Greek island of Antikythera in 1900, this toaster-size device may have been the world’s analog – or mechanical – computer. Archaeologists believe the Greeks used it 2,000 years ago to calculate the courses of constellations and predict eclipses. Smaller than a modern PC, the Antikythera Mechanism contained at least 30 bronze gears and was remarkably efficient for its size. It even had an instruction manual inscribed on copper plates.
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