Re: LW II Memory usable in Mac II?

Article View: comp.sys.mac

Article #38356

#38356

From: Marc T. Kaufman
Date: Sat, 25 Feb 1989 17:25

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In article <440@trigraph.UUCP> poslfit@gpu.utcs.UToronto.CA (John Chew) writes:
>In article <7433@batcomputer.tn.cornell.edu> mha@tcgould.tn.cornell.edu (Mark H. Anbinder) writes:
.>We've got some 256K SIMMs that were taken out of our LaserWriter II
.>when its memory was upgraded.  Can these SIMMs be used in a Mac II
.>the same way that other 256K SIMMs can?  If not, are they good for
.>anything at all?

>I tried putting some extra Mac II SIMMs into an LW II NTX and found
>to my chagrin that they wouldn't fit.  I presume the only thing that
>your spare LW SIMMs are good for is for putting into other LWs.  Perhaps
>there is some good technical reason for this, and for LW SIMMs being
>3-6% cheaper than Mac SIMMs?

The LW SIMMs have a separate bit-enable line for each bit of the byte, to
speed up OR-to-Memory functions.  Maybe they are cheaper because the demand
is relatively low :-), since they can't be used other places.

Marc Kaufman (kaufman@polya.stanford.edu)

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Message-ID: <7206@polya.Stanford.EDU>

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References: <7433@batcomputer.tn.cornell.edu> <440@trigraph.UUCP>

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From: kaufman@polya.Stanford.EDU (Marc T. Kaufman)
Newsgroups: comp.sys.mac
Subject: Re: LW II Memory usable in Mac II?
Message-ID: <7206@polya.Stanford.EDU>
Date: 25 Feb 89 17:25:09 GMT
References: <7433@batcomputer.tn.cornell.edu> <440@trigraph.UUCP>
Reply-To: kaufman@polya.Stanford.EDU (Marc T. Kaufman)
Organization: Stanford University
Lines: 18

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