vintagecoder at
aol.com wrote:
If you look at IBM as an example, many (most?) of
their languages
went on to
fame both on their own platforms and off. FORTRAN,
COBOL, and PL/I
are the
best examples. None of that was ever open source in
IBM land [...]
Incorrect. Those were open source until the great unbundling of June
23, 1969. In fact, it went beyond just "open source"; they were in the
public domain, along with the operating systems they ran on (e.g.,
OS/360 21.8, DOS/360 and TOS/360 26.2, MVS 3.8, TSS/370 3.0).