Multiple choice general knowledge science & technology Who built the world's first binary digit computer: Z1...? Ken Thompson Konrad Zuse Alan Turing George Boole Reveal answer Fill a bubble to check yourself B Correct answer Explanation Konrad Zuse built the Z1, the world's first programmable binary digital computer, in 1936-1938 in Germany. Alan Turing was a theoretical computer scientist, George Boole developed Boolean algebra, and Ken Thompson created Unix - none built the Z1.