Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!watmath!clyde!burl!ulysses!allegra!princeton!caip!topaz!uwvax!geowhiz!larry From: larry@geowhiz.UUCP (Larry McVoy) Newsgroups: net.unix,net.unix-wizards Subject: Re: 4BSD is dead??? Message-ID: <448@geowhiz.UUCP> Date: Sat, 14-Jun-86 02:52:18 EDT Article-I.D.: geowhiz.448 Posted: Sat Jun 14 02:52:18 1986 Date-Received: Tue, 17-Jun-86 21:18:58 EDT References: <440@geowhiz.UUCP> Reply-To: larry@geowhiz.UUCP (Larry McVoy) Organization: UW Madison, Geology Dept. Lines: 35 Xref: watmath net.unix:8156 net.unix-wizards:18407 Summary: It seems to be true Since I posted the original questions several people have come forward to sustain them. Here's what I know: 1) Apparently, 4.3 is as far as it goes. I am reasonably certain that the networking part of 4BSD will no longer be developed (at least not w/dod funding). I am less certain that 4BSD will stop at 4.3; I will say that nobody from ucb had anything to say. You would think that they would complain if I was flapping my gums w/o cause. 2) There is an operating system, called "MACH", which is based on Accent. Both were developed at cmu. Both are message based systems; Mach is supposedly *binary compatible* with 4.3. Mach has a lot of neat features including (as of yet unimplemented[??]) someting called threads. Threads are like subdivisions of a process; they run concurrently but are lighter weight than prcesses themselves. I think that means that context switches betweens threads is easy. Also, it's a multi-processor system. They have it running on a VAX 784 (as well as other flavors of vaxen). 3) It is not clear whether cmu will get the reins or not. They have something that looks pretty nice and as Henry Spencer mentioned they get a lot of funding from DoD. Does that mean they're the next Unix house? Who knows? Maybe there won't be anything except sys5/version8. Disclaimer (read this or my *ss is grass): Everything I've said is somewhat necessarily vague. Obviously neither ucb nor cmu nor DoD consults me when making these decisions. What I've learned is largely second hand info; anyone who cared to ask could get the same. -- Larry McVoy ----------- Arpa: mcvoy@rsch.wisc.edu Uucp: {seismo, topaz, harvard, ihnp4}!uwvax!geowhiz!larry "Just remember, wherever you go -- there you are." -Buckaroo Banzai