Context: Early digital computers were electromechanical; electric switches drove mechanical relays to perform the calculation. These devices had a low operating speed and were eventually superseded by much faster all-electric computers, originally using vacuum tubes. The Z2, created by German engineer Konrad Zuse in 1939, was one of the earliest examples of an electromechanical relay computer.

Question: Who created the relay computer, the Z2?
Answer: Konrad Zuse

Question: When did Konrad Zuse invent the Z2?
Answer: 1939

Question: What is one of the first electromechanical relay computers?
Answer: The Z2

Question: Konrad Zuse was an engineer with what nationality?
Answer: German