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Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!ukma!gatech!fabscal!dorn
From: dorn@fabscal.UUCP (Alan Dorn Hetzel)
Newsgroups: comp.sys.misc,comp.os.misc,comp.misc,comp.arch
Subject: Re: The NeXT machine has been announced! (long)
Message-ID: <528@fabscal.UUCP>
Date: 15 Oct 88 20:27:10 GMT
References: <360@elan.UUCP> <2070@cloud9.UUCP>
Reply-To: dorn@fabscal.UUCP (Alan Dorn Hetzel, Jr.)
Organization: Fabscal Systems, Inc.
Lines: 21

In article <2070@cloud9.UUCP> cme@cloud9.UUCP (Carl Ellison) writes:
>
>By my calculator, 45 chips in 144 square inches
>gives 3.2 sq.in. per chip, on the average.
>
>Since a number of those need to be memory (therefore not monster PGAs),
>I don't see the need to cram.
>
>What's up here?
>

If you stop to think, 45 chips doesn't include the 8 megabytes of memory,
or if it does, it's not your typical memory chips, some sort of mondo hybrid
packaging.  My guess is that the 45 refers to other than memory chips,
which don't get counted generally, since they can vary by configuration.

8 megabytes of 1-megabit (what they used, i hear) chips, with byte parity,
would be 72 chips, which would tighten up the spacing a little, no?

Dorn
gatech.edu!fabscal!dorn