As part of the last post, reminding people to comment here, as opposed to my other site; Gary Sager, from the System 75 development team responded (I’m going to be honest unfairly) about my one line opinion wishing the System 75’s core operating system should’ve been UNIX. I believe he took my words too literally. Because I can’t easily move comments from one WP site to another, here is the original text.
In your web page on Oryx/Pecos for the System 75, you ask “it makes you wonder why was this not UNIX?” I think I am qualified to answer the question, being the architect and principal programmer for the operating system (you will find my name on the BSTJ article). At the time the system was being developed we were using the Intel 286 processor to keep costs down. That chip does not have virtual memory hardware, so I got to spec the hardware to implement that. At the time, UNIX was certainly not up to the real-time requirements of telephony on such hardware. BTW, before I really got into the implementation, I had to pass muster with Ken Thompson. The issue of using UNIX never came up. Perhaps today some form of UNIX might be viable on the more powerful chips available, but UNIX is still not a real-time system. Running UNIX as an application on a real-time system might work.
While I understand the abstract differences, I was talking mostly of it’s self healing nature of Oryx/Pecos and the more friendlier end user interface of the “Definity” line of PBX systems. I know people would quickly come to my defense and know my frustrations and strong opinions of UNIX in general, from a professional user, not a technical engineer. You’re welcome to opine to my defense in the comments – to the people I won’t name! 🙂
Anyways, I’m hoping he enjoyed this site with future loyalty and I always appreciate direct comments from the people behind the subjects in this case the vintage Avaya PBX offerings. It’s becoming rare because if Bell or Grey was still alive, you know they’d probably respond to me too! 😉
As a friendly reminder, there are pages on this site where you can contact me. All non pages enable you to comment with a real time response. The former “Dial Zero” page act’s as it’s Facebook-like wall. As much as it’s clutter to me when I visit others sites, I felt well its like the Wall, hell with it!
I do thank him for reminding me to put the final touches in getting the System 75 papers to be digitized. As some of you know, I had a lousy couple of years which has stalled this project. The finished project is to have the entire article as opposed to some other stuff I posted in the same tribute branch of pages. Please give me some time to complete!