What was the first OS that you had a 2 MB TSO region? What hardware.
MVT TSO on the 4 MB 360/91 at UCLA was about 3/4 MB . There was a lot you could do, although it was slow. I did experiment with overlay modules though. Bleah.
The reason you could do a lot in 3/4 MB is that it was done in efficient languages, like Assembler. None of these modern bloatware languages that make every app on my phone 32 MB minimum, and often up to 500 MB.
/Leonard Seymour J Metz wrote on 9/7/2023 3:32 AM:
I never had TSO in less than 2 MiB; 768 KiB gives me shudders. ________________________________________ From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> on behalf of Clem Clarke <clementcla...@ozemail.com.au> Sent: Wednesday, September 6, 2023 6:38 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: Is the IBM Assembler List still alive - Dumps - Early days Running TSO in 3/4 of a meg was interesting. And VERY slow.
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