Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!wuarchive!zaphod.mps.ohio-state.edu!unix.cis.pitt.edu!dsinc!cdin-1!icdi10!fr From: fr@compu.com (Fred Rump from home) Newsgroups: comp.sys.ibm.pc.misc Subject: Re: DR-DOS - Multitasking Keywords: DR-DOS, DRI, Multitasking OS Message-ID: <1991Apr21.152708.19718@compu.com> Date: 21 Apr 91 15:27:08 GMT References: Organization: CompuData Inc. Lines: 18 vcl@mimas.UUCP (Victor C. Limary) writes: >What exactly is MP/M? I've heard of MP/M for my Apple II, but that was a >CP/M clone, and I seriously doubt that it's what you're all talking >about. Or is it? You got it. MP/M was based on dividing 64KB up into chunks for Multi-programming and memory sharing in a CP/M mode. It was a tough way to write code. Most decent software for MP/M was written in assembler, mostly Z80, and every last byte counted. It was the good old days where programmers still had to worry about efficient code and limited resources. There are still many systems running both CP/M and MP/M, but mostly overseas. I'm just glad we now have 32 bit systems with 16MB of RAM and C and real databases etc etc and UNIX, of course, but still on a PC. fred -- W. Fred Rump office: fred.COMPU.COM 26 Warren St. home: fred@icdi10.COMPU.COM Beverly, NJ. 08010 bang: ...{dsinc uunet}!cdin-1!icdi10!fred 609-386-6846 "Freude... Alle Menschen werden Brueder..." - The Ode