Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!ncar!ico!rcd
From: rcd@ico.isc.com (Dick Dunn)
Newsgroups: comp.arch
Subject: Re: seeking general purpose workstation w/large memory
Summary: 386 phys vs logical
Message-ID: <1990Aug7.033006.23985@ico.isc.com>
Date: 7 Aug 90 03:30:06 GMT
References: <1990Aug6.181339.21156@caen.engin.umich.edu> <25941@bellcore.bellcore.com>
Organization: Interactive Systems Corporation, Boulder, CO
Lines: 13

mo@messy.bellcore.com (Michael O'Dell) writes:
> The last time I checked 32 bits of address would only get you
> 4 gigabytes, minus whatever the OS wanted...
...
>...I guess on a 386 or an RS/6000 you might do a bit more,...

Careful...don't slip on the difference between physical and logical.  The
386 has an effective virtual address space > 32 bits (if anyone is so
foolish as to use the &^%$#! segment registers), but a 32-bit physical
address, as in 32 address-select pins.
-- 
Dick Dunn     rcd@ico.isc.com -or- ico!rcd       Boulder, CO   (303)449-2870
   ...Are you making this up as you go along?