FOCAL1. FOrmula CALculator. An interactive system written by Rick Merrill of DEC in 1969 for PDP-5 and PDP-8. It was a descendant of AID/JOSS. Versions: FOCAL-69, FOCAL-1971, FOCAL-11 (for PDP-11 under RT-11).
Last updated: 1994-12-212. Forty-One CAlculator Language. The programming language of the HP-41 calculator line.
Last updated: 1994-12-21