Comment Re:Windows Backward Compat? (Score 2, Interesting) 380
Backward Compatibility: Running your COBOL written in 1971 on the current release of z/OS without changes.
FYI: the hardware architecture has gone through 2 addressing mode changes since then - from 24, to 31, and now 64 bit addressing.
FYI: the hardware architecture has gone through 2 addressing mode changes since then - from 24, to 31, and now 64 bit addressing.