from
The Free On-line Dictionary of Computing (8 July 2008)
Plankalkül
<language, history> (Or "Plankalkuel" if you don't have
umlauts). The first programming language, designed by {Konrad
Zuse}, ca. 1945. Zuse wrote "Rechenplan allgemeiner Struktur"
in 1944 which developed into Plankalkül. Plankalkül included
{arrays} and {records} and used a style of {assignment} in
which the new value appears on the right.
Zuse wrote Plankalkül for his {Z3} computer (finished before
1945) and implemented it on there as well. Much of his work
may have been either lost or confiscated in the aftermath of
World War II.
ESR Plankalkül
(http://tuxedo.org/~esr/retro/plankalkuel/).
["The Plankalkül of Konrad Zuse", F.L. Bauer et al, CACM
15(7):678-685, Jul 1972].
(2002-05-28)