This collection shows technical drawings of the Z1 reconstruction. The Z1 built in 1938 was Konrad Zuse’s first computing machine. It was a mechanical machine and was destroyed during World War II. From 1987 to 1989 Zuse reconstructed the Z1 from his memory.

The Z1 consisted of different functional units, e.g. the input unit, the output unit, the memory units, and the addition unit. Each of this unit was built for a specific purpose and all units were connected. With an interactive and freely movable 3D simulation the functionality of the Z1 adder is demonstrated and explained. You can calculate with it by entering numbers and observe how the adder operates with the processes emphasized by color highlighting. The simulation is based on the original patent plans by Konrad Zuse.

source: Dfly