IPL - Information Processing Language. Allen Newell, J.C. Shaw, H. Simon,
Carnegie ca. 1956. Said to be the first list-processing language, also the
first language to support recursion. Very low level. Sammet 1969, pp.388-
400. "Information Processing Language-V Manual", A. Newell ed, P-H 1965.
Versions: IPL-I (never implemented), IPL-II (1957 for JOHNNIAC), IPL-III
(existed briefly), IPL-IV, IPL-V (1958, for IBM 650, 704, 7090, many
others. Widely used), IPL-VI.
Comments, Experience, Additions
Next Language: IPS