On Sun, 11 May 2014 00:57:05 -0400, Tony Harminc wrote: >On 10 May 2014 15:58, Ed Jaffe wrote: >> FWIW, I don't think the source code for Program Products like ADRDSSU was >> available even in the pre-OCO days. > >Some IBM Program Products had source code available from the earliest >days. For example, the PL/I Optimizing compiler had source code that >was simply orderable as an option. ... > Is that from the (legendary?) era when IBM attempted to tell customers that the specification of the language could be inferred by reading the source code of the compiler?
Eliminates bug reports: whatever the compiler does is ipso facto correct. > ... The same was true of ACF/VTAM and >many other quite mainstream products. Program Product versions of >JES2, and of course VM, continued for a long time not only to have >source available, but to be source maintained. > >But when the OCO is a Good Thing meme got entrenched in the early >1980s, new IBM code - priced or not - mostly did not have continued >source availability. -- gil ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
