Timeline of computing hardware before 1950

This article presents a detailed timeline of events in the history of computing software and hardware: from prehistory until 1949.

For narratives explaining the overall developments, see History of computing.

Soviet Union, United States In 1940 Zuse presented the Z2 to an audience of the Deutsche Versuchsanstalt für Luftfahrt ("German Laboratory for Aviation") in Berlin-Adlershof.