The original MFT, with SHIFT and WAITR, was a dog's breakfast, but things were a lot better with MFT II.
Yes, the early releases of TSS were bad, but so were the early releases of OS/360. -- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 עַם יִשְׂרָאֵל חַי נֵ֣צַח יִשְׂרָאֵ֔ל לֹ֥א יְשַׁקֵּ֖ר ________________________________________ From: IBM Mainframe Discussion List <[email protected]> on behalf of [email protected] <[email protected]> Sent: Thursday, August 7, 2025 10:19 AM To: [email protected] <[email protected]> Subject: Re: Unit=VIO External Message: Use Caution > I always considered VIO a hack. what I really wanted was for IBM to > steal ideas from TSS and MULTICS. Coming from the IBSYS, PS108, and PR-155 world, I considered PCP & MFT & later-MVT (without HASP) as a direction to making a mess. (And this was with 2311 volumes). HASP made the whole system work much better! (I was working with one of the early users of HASP.) For various reasons I was also involved with early TSS. The goals were nice but, for practical use, it needed at least 1 MB memory and that was very expensive in those days. In the early TSS days VAM worked, but with lots of questions, especially for those (like me) that liked to work at a lower assembly level. For the very few customers who had both the patience (over multiple years) and the money/connections to acquire more than 1MB for their 360/67, TSS was probably interesting. It certainly established many details that moved into OS/360, etc. It is always nice/interesting/diverting to show one's skills by trying to rework history. However, it is even more interesting if one first tries to establish the existing mindset/environment/goals/budgets of those historic years before proceeding to rework them! Bill Ogden ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
