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

From: Paul Koning <pkoning_at_equallogic.com>
Date: Mon Feb 21 08:44:04 2005

>>>>> "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
Received on Mon Feb 21 2005 - 08:44:04 GMT