Spacewar! (was Re: Laser display...)

[Paul Koning]

>>>>> "woodelf" == woodelf  <bfranchuk at jetnet.ab.ca> writes:

 woodelf> Vintage Computer Festival wrote:
 >> This is totally questionable.  While the design may operate like a
 >> digital computer, it uses entirely analog techniques to produce
 >> the digital results.  Everything the box does is a result of
 >> analog circuitry.
 >> 
 >> 
 woodelf> Well so do transistors and most tubes and even IC's. I think
 woodelf> relays are the only real DIGITAL parts out there. :)

Everything is analog (even relays) -- they only appear to be digital
if you use approximations.

(It isn't easy to get a relay in an "in between" state -- just as it
isn't easy for logic circuits, but I know it's possible for the latter
and it should be possible for the former as well.)

    paul