microcoding a PC into a PDP-11 (was: RE: Classic Computers vs

From: Eric Dittman <dittman_at_dittman.net>
Date: Mon Sep 17 18:00:40 2001

> > >Cool idea -- flash on a DIMM. Has anyone ever heard of such a beast?
> >
> > The Apple Set Top box uses flash SIMM/DIMMs for it's boot
> > code. At least the one I have does. It's a 68pin SIMM with 8 Intel
> > E28F020 flash memory chips (256k x 8).
> Additionlly, several models of Macs have had either SIMM or DIMM
> sockets for ROMs; in the case of the Mac IIci, it's unpopulated,
> and my guess was there either for upgrades or for some special-
> order boxes used by an unnamed customer... ditto the Quadra 605
> (LCII format).

My Mac IIfx used a ROM SIMM. The IIfx was the last Mac I ever
bought, too, after the way Apple treated IIfx owners.
Eric Dittman
Check out the DEC Ethusiasts Club at http://www.dittman.net/
Received on Mon Sep 17 2001 - 18:00:40 BST

This archive was generated by hypermail 2.3.0 : Fri Oct 10 2014 - 23:34:25 BST