From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,55958fd991db66fe X-Google-Attributes: gid103376,public X-Google-ArrivalTime: 2002-08-30 13:39:33 PST Path: archiver1.google.com!news1.google.com!newsfeed.stanford.edu!news-spur1.maxwell.syr.edu!news.maxwell.syr.edu!newsfeed.icl.net!newsfeed.fjserv.net!kibo.news.demon.net!demon!psiuk-p2!psiuk-p3!uknet!psiuk-n!news.pace.co.uk!nh.pace.co.uk!not-for-mail From: "Marin D. Condic" Newsgroups: comp.lang.ada Subject: Re: Ada-inspired OS/Language Date: Fri, 30 Aug 2002 09:33:11 -0400 Organization: Posted on a server owned by Pace Micro Technology plc Message-ID: References: <3D628304.3040506@cogeco.ca> <3d6e9cb6.75108980@news.cis.dfn.de> NNTP-Posting-Host: dhcp-200-180.miami.pace.co.uk X-Trace: nh.pace.co.uk 1030714406 25234 136.170.200.180 (30 Aug 2002 13:33:26 GMT) X-Complaints-To: newsmaster@news.cam.pace.co.uk NNTP-Posting-Date: 30 Aug 2002 13:33:26 GMT X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Xref: archiver1.google.com comp.lang.ada:28607 Date: 2002-08-30T13:33:26+00:00 List-Id: It looks interesting. Does this mean that development on AdaOS is ramping up? Here's one thing I think is an excellent hook: The fact that you are aiming to make it a distributed system. Figure that there are any number of geeks out there with two or more old PCs sitting around the house who might find it really fun to put an OS on them that turned them into a cluster. That's something kind of unique. Perhaps the more it aims at distribution and load balancing the more of a niche it will find in industry. If it makes scaling up a system easy by just plugging in more inexpensive computers, it could really catch on. Especially to the extent that it can exploit Ada tasking as a distribution mechanism - "Sure, you can program it in C/C++ but it'll be easier to exploit parallelism and get better performance if you just do it in Ada..." BTW: What theme is driving the naming scheme? MDC -- Marin David Condic Senior Software Engineer Pace Micro Technology Americas www.pacemicro.com Enabling Digital. Our Vision is to be the biggest supplier worldwide of digital gateway technology. www.pacemicro.com "Nick Roberts" wrote in message news:3d6e9cb6.75108980@news.cis.dfn.de... > On Tue, 20 Aug 2002 13:57:24 -0400, "Warren W. Gay VE3WWG" > strongly typed: > > >Ryan wrote: > >> An article on Slashdot reads > >> (http://developers.slashdot.org/article.pl?sid=02/08/18/2053259) > >... > >> "BRiX, unlike other modern operating systems, does not use hardware to > >> isolate and protect applications from each other. Instead, it uses a > >> single address space and relies on a safe-language to generate code that > >> will not access memory for which it does not own. > > > >Here we go again.. another DOS-like, memory wide open to corruption > >concept. PC's eventually, with the help of 286 and later got to the > >point where they could protect processes. Now we've regressed with > >the palms etc., back to this no-protection model. No matter how good > >the language is, there will always be occaisions where one process > >steps on another unless it is prevented from doing so in hardware. > > > >This is OK for research. Not good for running systems that must > >run as firewalls, or central hosts to university students! > > This is one reason why BRiX (or Oberon) will not have a tremendous effect > on the design of AdaOS. > > The other main reason is that this type of design appears to preclude the > possibility of the direct execution of programs imported in machine code > form. I find this an unacceptable restriction, and I think too many users > would as well. > > By the way, there is a simple overview of AdaOS now available at > > http://www.adaos.net > > with a pretty diagram if anybody is interested. > > -- > Nick Roberts