Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!rutgers!aramis.rutgers.edu!topaz.rutgers.edu!ron From: ron@topaz.rutgers.edu (Ron Natalie) Newsgroups: comp.os.misc Subject: Re: why rare? [was: Re: Realtime OS's] Keywords: Realtime Message-ID:Date: 5 Jul 88 22:55:08 GMT References: <10450@udenva.cair.du.edu> <8411@pur-ee.UUCP> <797@taux01.UUCP> <11053@sol.ARPA> Organization: Rutgers Univ., New Brunswick, N.J. Lines: 11 Real time OS's aren't much harder than anything else. Most computer manufactueres offer their own real-time operating systems, the problem is that there is no real portable, nice OS like UNIX to do real time. Mostly because the demand just isn't there. We live in a time share world. Many of us who have worked in research labs have hacked real time support into UNIX of one sort or another. As is usually the case in RealTime support in a timesharing operating system, you essentially give tyrannical powers to certain user mode processes. Hence, real time really works best on standalone systems. _Ron