Hi Hal, > Anyhow, that's a nice description of OS/360 et. Seq. I also > worked on that system as well as the Unisys (Univac) 1100 > Series. Mainframe OS (in the dark ages) were concerned with > conservation of resources. Actually, all programming was > concerned with conservation of resources, hence the Y2K issues.
I still see programmers "bit twiddling" to shave instruction times. Not that it's a bad thing, especially from a "good habits" point of view, but having delved into performance issues, I keep telling people that if they want to spend time on improving performance, spend it on reducing I/O. Instruction times are dots under the mountain by comparison. > My impression based on what I've seen and read is that > Windows really does not have a consistent architecture. That > is one with a "vision," like OS/360, Exec8, VAX/VMS and most > of the DEC o/s. There is also a lot of bloat because > resources are really cheap. So everyone kind of goes off and > does what he needs to do with little regard for how it is done. I pretty much had that impression about Windows until now, but thought that Vista would bring Windows to a new level, i.e. a re-write that would actually be organized around rhyme and reason. > The growth of computer availability has spawned some > counterproductive habits and attitudes. Today you can > knock-out a program lickety-split because you have instant > notification of errors. Over time this causes sloppiness. > Years ago, minor coding errors were significant setbacks to a > schedule. Yes, I see that happening in the applications and ad hoc quick and dirty world, but to think the OS is more chaotic then orderly isn't very comforting. > I could go on but I seriously doubt that anyone is interested. Actually, I'm interested :) Bill > HALinNY _______________________________________________ Post Messages to: [email protected] Subscription Maintenance: http://leafe.com/mailman/listinfo/profox OT-free version of this list: http://leafe.com/mailman/listinfo/profoxtech ** All postings, unless explicitly stated otherwise, are the opinions of the author, and do not constitute legal or medical advice. This statement is added to the messages for those lawyers who are too stupid to see the obvious.
