By use, I mean are they still actively being developed for. I know this is the case in New Zealand and USA. In particular, is ALGOL code still being written on them?

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    Voting to close as if they are still actively being developed for then they are, by definition, not retro. - especially with mainframes. – manassehkatz-Moving 2 Codidact Oct 13 '18 at 23:59
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    app5.unisys.com/library/gmMail/emails/documents/CP_Oct12/… I'd call this current technology.... – UncleBod Oct 14 '18 at 5:01
  • I'd say it's borderline. It may go against basic definitions due still being supported, but then again so are all emulators - and that's what this is about. ClearPath systems are an emulation environment for classic 36 Bit Univac 1100/2200 mainframes (see en.wikipedia.org/wiki/Unisys_2200_Series_system_architecture ). Just because it's still a comercial product and running on Xeon servers, doesn'T make it different for a C64 emulation. – Raffzahn Oct 14 '18 at 17:48
  • @Raffzahn I'd say there is a difference between an ordinary user using a current machine to run some software that happens to emulate some other manfuacturer's Retro system vs. using a manufacturer's current system to emulate that same manufacturer's older system using emulation software provided by that manufacturer - and in fact which is one of the selling points of the current system. – manassehkatz-Moving 2 Codidact Oct 14 '18 at 21:32
  • @manassehkatz as I said, it's a borderline issue. Calling it it a current system is a bit off, as the hardware is nothing special, but of the shelf Xeon boards. More important, I doubt that they aquired a single new user. The selling point you mentioned only reches the already installed base. Ther is no killer aplication that will make a new one jount a 50 year old architecture that is inferiour to any actual PC. It's exacly as with other emulators ment to keep 'ancient' anstallations alive. – Raffzahn Oct 14 '18 at 21:39

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