rarest computers. was: RE: Xerox Alto Restoration + Emulation

[Tony Duell]

> 
> On Tue, 2004-08-03 at 03:13, William Donzelli wrote:
> > 3) How many people have *significant* machines? One that made a dent in
> > history, even if it was something as mundane as an Apple II or a
> > PDP-11/34?
> 
> Do you mean significant as in it might be a really common machine, but
> that particular one was used for something interesting / significant /
> important?

How about one that's both rare (as in I know of no others that have 
survived) _and_ was used for something significant. Alas it's not really 
a computer.

It's the I2S (International Imaging Systems) Model 70 Image Processors 
that were used for the BBC weather forcast satellite images. Alas they're 
currnetly in bits, but I have all the boards and cardcages, and the 
schematics/user manuals. Even have the Unibus and DR11-W-compatible 
interfaces for them.

-tony