Discovery of '2000-year-old computer' leaves scientists baffled

Scientists have been left baffled by the discovery of the wreck of a 2,000-year-old “computer” that is amazingly complex.
The Antikythera mechanism – an astronomical calendar – has been dubbed “‘the first computer” and has baffled scientists for generations after it was first discovered inside a Greek shipwreck in 1901.
The device is a hand-powered time-keeping instrument that used a wing-up system to track the sun, moon and planets’ celestial time. It also worked as a calendar, tracking the phases of the Moon and the timing of eclipses.
Despite sounding relatively simple, the mechanism was actually ahead of its time, being more technically sophisticated than any other tool that was invented over the next 1,000 years.
Discovery of '2000-year-old computer' leaves scientists baffled