From: ccw@lancelot.NoSubdomain.NoDomain (Christopher Wood)
Subject: Re: How long do RAM SIMM's last?
Organization: Bellcore, Livingston, NJ
Distribution: usa
Lines: 21

In article <noah-160493095418@noah.apple.com>, noah@apple.com (Noah Price) writes:
|> In article <1993Apr11.234818.1755@ultb.isc.rit.edu>,
|> jek5036@ultb.isc.rit.edu (J.E. King) wrote:

|> > Doesn't a 1 MB SIMM have about 1024 * 1024 * 8 moving flip-flops?

|> They don't move, to anybody much bigger than an electron :-)

Dynamic RAM is not based on flip-flops; there's basically a single
transistor and capacitor to store each bit!  Static RAM is based on
flip-flops, and is much more expensive and much less dense.  And
neither has any parts that "move", if electrons and thermal expansion
are ignored...

|> noah

Chris

-- 
Chris Wood     Bellcore   ccw@ctt.bellcore.com

