Hardware/doc preservatoion, was Re: rarest computers.

[ben franchuk]

Tony Duell wrote:

> It's easier to preserve the manuals -- if they exist -- though.

Some times you must do more than that even. Alot of the newer
chips are clones of earlyer chips and the doc's are sparce so you must
gp to the orginal docs for quirks and bugs.
Ben.
PS. Years ago in BYTE ( early 1990's? ) they had spoke up of a CPU
designed for reliable operation for  real time control of things like 
power plants
or subways or aircraft. They claimed it was so simple that programs 
could be proven
to be bug free. I was wondering if they manufactured  or sold any the 
devices.