Need Info on DEC 11/84 Board, M8190/thread drift

< bit small! Nothing on the scale of the Pentium II has ever been < achieved with transistors, never mind relays, and I'm sure they < tried. For example, it would be possible to place transistors at < 1 per cubic inch, and have the cool adequately, but it's clearly Your unaware of many systems of the 60s that were large on performance and transistors. Your one transistor per cubic inch is far to low. I've worked with cordwood modules that were more in the 6 per cubic inch. Even flat boards were fairly dense. What is missed if the PII uses transistors where other logic systems would employ resistors, capacitors and pulse transformers. Also CMOS requires two transistors to do what can often be done with one using alternate forms of logic. What would be hard to attain is the extreme speeds and that is limited by incterconnections. Putting a few or alot of transistors on one die is not a speed matter in itself. The shrinking of the interconnectivity IE: shorter wires is! When machines got to the Cray speeds the length of wires was an issue as electrons propagate at 1ns a foot. To put that in perspective a PII running at 333mhz is clocking at 3ns! Distributing high speed signals around computers is an art, still. < never been attempted, because if it were, there would be boxes < to plug into a PC XT to get Pentium II speeds. The XT bus and IO are slow, even using a PII would be slowed. BEsides it was done using 386s... Allison