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From: apc@cblpe.UUCP (Alan Curtis)
Newsgroups: net.arch
Subject: Re: VERY LARGE main memories
Message-ID: <200@cblpe.UUCP>
Date: Wed, 10-Sep-86 19:47:09 EDT
Article-I.D.: cblpe.200
Posted: Wed Sep 10 19:47:09 1986
Date-Received: Fri, 12-Sep-86 05:06:55 EDT
References: <2017@sdcsvax.UUCP> <884@gilbbs.UUCP>
Reply-To: apc@cblpe.UUCP (55212-Alan Curtis)
Organization: AT&T Bell Laboratories - Columbus
Lines: 17
Keywords: memory size

In article <884@gilbbs.UUCP> mc68020@gilbbs.UUCP writes:
>
>   Someone please correct me if I am wrong, but as I have been lead to 
>understand the situation, it will prove somewhat difficult to successfully
>implement large physical memory systems on the order of 1Gb.  The primary
>impediment seems to be the delays caused by propagation delays in the
>decoding trees.   Anyone care to enlight me (us)?
>
>
>tom keller					"She's alive, ALIVE!"
>{ihnp4, dual}!ptsfa!gilbbs!mc68020

Today I can buy 16 megabytes on one board given 256k bit drams.
Tommorrow I should be able to buy the same board with 1M devices
giving me 64meg on a card. 20 cards is then 1.2G.

I think it would be possible.