Zuse KG

Contribution to AI

Continental Europe's access to computing in the early 1950s ran through a single machine. The relay-built Z4, salvaged from wartime Berlin and installed at ETH Zurich in 1950, was for a time the only working digital computer in central Europe, and it was rented rather than sold — an arrangement that made a small Hessian workshop the supplier of Europe's first practical computing service. What happened around that machine mattered more than the machine. Heinz Rutishauser, working on it at Zurich, pursued the idea that the computer could produce its own calculation plans, and that line of thought fed directly into ALGOL; by the end of 1958 the ZMMD group had an ALGOL 58 compiler running on the vacuum-tube Z22, so the notation in which European researchers would publish algorithms for the next decade first executed on hardware from this firm. The Z11 and Z22 then put machines into German universities and industry in quantity, 251 by the time production ended. One consequence was unplanned: in 1959 Theo Lutz, working on a Z22 at Stuttgart, recombined nouns and adjectives drawn from Kafka into sentences chosen at random, producing what is generally counted the first computer-generated literature in German. Konrad Zuse's own Plankalkül, whose 1945 manuscript devotes dozens of pages to chess routines, went unpublished in full until 1972 and so influenced nothing directly — a formal language for judgement written before machines could run it.

Drafted with AI and edited by hand (claude-opus-5, reviewed 2026-08).