11 ms·
Even more “insanity”: z/OS (aka OS360 aka MVS) supports programs going back to the 60s and I just talked with a DE at IBM who is still using a program compiled
by shortlived 3y ago
Even more “insanity”:
z/OS (aka OS360 aka MVS) supports programs going back to the 60s and I just talked with a DE at IBM who is still using a program compiled circa Apollo 11 mission.
- rahen 3y agoThat's common in the mainframe world. Unisys (ex Univac) still has its Dorado mainframes binary compatible with the Univac 1100 released in 1962.
- the_only_law 3y agoI think I remember reading a while back that System/360 binaries can still run on modern Z/architecture mainframes.
- shortlived 3y agoYup, that’s the example I cited above.
- the_only_law 3y agoOops, missed that, I came in from the comments link.
- sillywalk 3y agoI thought the Unisys mainframes have been running emulated on X86/X86-64 for a while? I assume they have some sort of binary translator.
- rahen 3y agoYes, you got it right. The Dorados now run a binary emulator on top of a microcomputer (x86_64) architecture, while IBM Z (itself essentially a 64-bit S390 arch) kept a mainframe configuration.
- sillywalk 3y agoWhat's a DE? Also did they tell you what the program did? Other systems that will run or automatically translate > 30 yr old binaries: - I believe IBM i on POWER {i5/AS400} will run stuff from System 38 (1980). - HPE Nonstop (aka Tandem Guardian ) on X86-64 will run or translate binaries from the original proprietary TNS systems (late 1970s) and MIPS systems (1991).
- rahimnathwani 3y agoDistinguished Engineer?
- shortlived 3y agoBingo.