[editted for space]
Actually the 8086 (from 1970s lit) was developed based upon the
mainframes of the time. Each block was developed for 64K per
section. As you said it was for switching, but for task switching
rather than just phone calls. The big push of the x86 family came
with the IBM PC. The AX had the actual 86, while the PC had the 88.
The 80186 was developed as a 16 bit microcontroller. At the time you
could even get them customized and with a number of different uses
for the pins (serial port, etc.). There was actually one company (no
long in business, which developed a low cost PC with the x186.
At the same time as the IBM was introduced, NCR introduced their own
version of the PC using a 8086.
> The Intel processor was developed more or less for ITT's "new"
> electronic switching system, an all new multi-processor based telephony
> switch. The idea was to have multiple blocks of ROM based code that would
> be allocated per phone connection, and executed as need to process
> telephone calls. It was decided that in a high page demand multi-task
> environment, (many tasks, often interrupted and switched between before
> any task finished,) a segmented memory architecture would be cheaper than
> using a large number of independent processors running off of one bank of
> ROM. I worked on this project for ITT in their Shelton, CT Advanced
> Technology Center. Intel delivered the 8086 for this project.
>
Having actually worked on an IBM project for a contractor (I was the
lead engineer for National Micronetics which developed the heads for
the 3-1/2" drive. I belive the word for IBM's security is paranoia
is mandatory.
Our drafting department made a copy of their drawings for the carrier
of the head, then sent them to the engineer for verification. Since
the new drawings contained OUR heading info on it...the engineer
bundled it all up and took them down to the security office. We got
demerits for that (yep, they give demerits).
IBM engineers also could not join us for any social occasions where
they were guests...they always had to pay their way.
>
> The person who made the decision was, according to my IBM sources,
> fired when IBM found he had more property than they expected could have
> been purchased on his IBM salary. IBM has strong policies against outside
> employment or income sources. In general, IBM tends not to fire people,
> preferring to think that people learn from their mistakes, and after some
> refractory period pumping software sludge, can again become good IBM
> employees, all the wiser for their experiences. Most IBM employees have
> never worked for another company, and think that the world ends at the
> edge of IBM. This makes them very dedicated and loyal to the company, and
> to each other, willing to cooperate with other IBM'ers all over the world,
> whom they have never seen or even heard of. Working at IBM is, at times,
> like all the best parts of working in a religious order or a religious
> retreat, without the need to worship. I have always enjoyed my assignments
> at IBM.
--Lee
Nurses' Call Administrator http://www.nurses-call.org
Design West http://www.designwest.com
Web Weaving Wizard http://www.wizards.net
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