2. Z1Year Invented: 1936Country: GermanyMain Feature: Freely ProgrammableSize: Built in a living room, although unknown since it was destroyed.
1. Antikythera MechanismYear Invented: Between 200 and 50 BCECountry: GreeceMain Feature: Analogue ComputationSize: Around 14.3” (W) x 7.5” (D) x 5.2” (H)