See also http://en.wikipedia.org/wiki/Plankalk%C3%BCl http://en.wikipedia.org/wiki/Plankalk%C3%BCl and http://www.zib.de/zuse/Inhalt/Programme/Plankalkuel/Plank

See also http://en.wikipedia.org/wiki/Plankalk%C3%BCl http://en.wikipedia.org/wiki/Plankalk%C3%BCl and http://www.zib.de/zuse/Inhalt/Programme/Plankalkuel/Plankalkuel-Report/Plankalkuel-Report.htm http://www.zib.de/zuse/Inhalt/Programme/Plankalkuel/Plankalk... for information on Plankalkül, an imperative programming language by Zuse, which, however, never was implemented on his computers.