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@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