From Nigel Williams@21:1/5 to All on Mon Sep 23 07:58:35 2024
If anyone has tapes or other media with early PDP-11 COBOL implementations
that predate V4 that is found on the Internet I would be interested to know about it please.
PDP-11 COBOL was initially a compile-and-go implementation for V1 and was released for RSX-11D and RSTS/E. I am interested to examine early versions to see how it developed to a full compiler.
The timeline I have constructed so far is as follows:
Apr 1974 - DEC finalising 1.0
Jun 1974 - Beta implementation released to 7 sites for testing
Oct 1974 - COBOL 1.0 product released for RSX-11D and RSTS/E
??? 1975 - V2 COBOL for IAS
Oct 1976 - V2 COBOL for RSTS/E validated by US Navy
??? 1977 - V3 COBOL
Aug 1978 - V3.1 COBOL
Jun 1980 - V4.1 COBOL (this can be found on the Internet)