Brian Lanning wrote:
I've never heard of this. Looks even more
tank-like than the 5150.
Look at the backplane where the cables go in.
http://cgi.ebay.com/Vintage-IBM-Tempest-Computer-for-Classified-work_W0QQit…
Oh, for Pete's sake, a Tempest terminal, right when we're talking about
classified info. Just so you know, this one is compromised by the
insecure monitor (I think - it should be MUCH bigger, and not plastic,
if Tempest approved) and the non-Tempest keyboard. "Tank-like" is a
very concise description.
I worked for a company that made (CP/M capable) Tempest terminals for
the Burroughs TD-830 emulation market. The government would not tell
you what acceptable levels of emissions were -- a company had to make a
prototype, and send it in for testing. A while (gov't time) later,
thumbs up or thumbs down. It often took many cycles to get a good one.
Once it was approved, they bought them for HUGE prices. Quite a
money-maker.
Warren