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From: yerazuws@rpics.UUCP
Newsgroups: comp.arch
Subject: Re: 64 Vs 32
Message-ID: <985@rpics.RPI.EDU>
Date: Fri, 13-Mar-87 08:58:02 EST
Article-I.D.: rpics.985
Posted: Fri Mar 13 08:58:02 1987
Date-Received: Sat, 14-Mar-87 15:06:59 EST
References: <3810013@nucsrl.UUCP>
Lines: 19
Summary: Yep.  64-bit is on the way.

In article <3810013@nucsrl.UUCP>, ram@nucsrl.UUCP (Raman Renu) writes:
> 
>      As the 32-bit CPU is everywhere, is the mini-class of machines 
> moving towards 64 bit?.  In a decade we have seen the migration from 
> 4->8->16->32.  Would there be a 64-bit micro-processor soon?
 
Yep.  Consider- it's now a standard configuration for VAX 8800's
to come with 512 megs of memory (I've got the part number around
somewhere).  A VAX has 32 bits- so if we assume (*) that all 32
can be used as memory address, a VAX (or other 32-bit processor)
can have AT MOST 4 GIG of memory.
	
If available memory continues to double every 18 months, we have
about 3.5 doubling periods left, or about 5 years.
	
   (*) assumptions like this are never valid.
-- 
	-Bill Yerazunis "VAXstation Repo Man"
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