Path: utzoo!attcan!ncrcan!ziebmef!stephen From: stephen@ziebmef.uucp (Stephen M. Dunn) Newsgroups: comp.sys.ibm.pc Subject: Re: QNX Operating System Summary: QNX Multitasking for PC,XT,AT,386 etc. Keywords: operating system Message-ID: <1989May18.221329.8584@ziebmef.uucp> Date: 19 May 89 02:13:28 GMT References: <634@pmafire.UUCP> Reply-To: stephen@ziebmef.UUCP (Stephen M. Dunn) Organization: Ziebmef Public Access Unix, Toronto, Ontario Lines: 51 In article <634@pmafire.UUCP> alan@pmafire.UUCP (alan herbst) writes: $ $Does anyone have any experience with the QNX operating system by Quantum $Software Systems, Kanata, Ontario? Their ad states QNX is both multiuser $and multitasking and only uses 150K RAM and works on PC, AT, PS/2. It $supports 32 terminals with an AT, 150 tasks per AT, has C compiler, runs $DOS tasks, and costs $450. Sounds as if it may be good for a small $business or home use instead of UNIX or OS/2. This reply comes from my brother, Andrew Dunn, who is an independent software consultant in Brampton, Ontario: I have been working with QNX for 2 years. We use it as a general- purpose office automation and software development system and to control shop floor processes in an electronic factory setting. In its latest version, QNX (whether loaded from disk or across ARCNET- based network) fits in 100-200K (depending on what tasks you run) on each node, and all nodes have access (optionally) to the resources of any other node. Terminals or other devices can be added to each node, either as user terminals (i.e. supporting logins) or dedicated devices under the control of other programs. As well as supporting multiple users, multiple tasks per node are supported on all versions, as well as SEND/RECEIVE/REPLY message-passing amongst tasks. Programs can be written in C (using the compiler supplied with the development system) or FORTRAN or dBASE (using third-party supplied compilers). Also, code development packages such as PRO-C from Vestronix ease development efforts on this system. As far as supporting DOS, this is handled two ways. The DFS (DOS File System) allows access to DOS disks and files as if they were QNX disks and files. Also, on selected compatibles, QDOS allows MS-DOS 3.20 and PC-DOS 3.1, 3.2 and 3.3 to be run as a single task under QNX. My experiences with QNX have been very good and I would heartily recommend it. If you require more information, Quantum Software Systems can be contacted at 175 Terrence Matthews Crescent, Kanata, Ontario. They also have a bulletin-board/conferencing/update system ... contact them for details. Regards, Andrew ---------------- Any questions directed to my brother can be mailed to this account (stephen@ziebmef.UUCP) and will be brought to his attention. -- ------------------------------------------------------------------------------- ! Stephen M. Dunn stephen@ziebmef.UUCP ! DISCLAIMER: Who'd ever ! ! Take off to the Great White North eh, ya hosehead ! claim such dumb ideas? ! -------------------------------------------------------------------------------