On Wed, 2 Feb 2011 14:10:57 +0000
<alan.b.pearce@stfc.ac.uk> wrote:

> 2101 256 bit x4 static RAM, N-MOS, geometry size unknown, introduced by i=
ntel in late 1960s/early 70s.
>=20
> 2102 1k bit x1 static RAM, N-MOS, geometry size unknown, introduced by in=
tel in 1970s.

Just for fun, I put a few terms into Google, and got this:

http://content.scu.edu/cdm4/results.php?CISOOP1=3Dany&CISOFIELD1=3DCISOSEAR=
CHALL&CISOROOT=3D/svhocdm&CISOBOX1=3Dsilicon

This gives a fair idea of the size of some of the chips you listed.

http://imgzoom.cdlib.org/Fullscreen.ics?ark=3Dark:/13030/kt7k4022nm/z1&&bra=
nd=3Dcalisphere

is a zoomable image of the 2102, quite detailed... There may be other
of interest on that site.

Hope this helps.
John


--=20
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