----- Original Message ----- From: "Ethan Dicks" <ethan_dicks(a)yahoo.com> To: <classiccmp(a)classiccmp.org> Sent: Friday, July 27, 2001 6:34 PM Subject: QNX (was Re: building a PDP11 from the things you find at home) be > > pretty cool. > > Agreed. I heard of QNX _years_ ago on the mc68k platform, long before > I saw it for the first time (on a 486, running the air handlers and > environmental controls at the science lab at McMurdo; they also use it > on the research boats for data collection as well as environmental > monitoring and control). > > -ethan

I think you must be mistaken. Perhaps you're thinking of another system? I was in high school hanging out at the University of Waterloo when Danny Dodge (??)came to pick up his lineprinter listings I happened to be reading. It was the source code to what became QNX. He was part of a 3 member team writing a real time kernel as an assigment for a 3rd or 4th year real-time programming course. At the time the target was a generic intel 80186 box. Most interesting was that the cross development was done on a Honeywell Gecos mainframe... I later acquired QNX 1.0 for the 8088 IBM PC, Nabu 1600 (8086) and Cemcorp Icon (80186 bionic beaver, a machine put into every Ontario school) I still have all these machines - QNX was a perfect match for <512K mmu-less memory systems. The Nabu also has an add-on discrete mmu which allowed it to run Xenix in 512 K... amazing for the time as it benched close to the speed of a VAX even with miserably slow WD MFM drives. Could you be thinking of OS-9 ? for the 6809 or OS-9000 ? Regards, Heinz