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February 2001

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Subject:
From:
"Hiteshew, Michael" <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Thu, 22 Feb 2001 14:03:41 -0500
Content-Type:
text/plain
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text/plain (102 lines)
        Mike,
        Here's my two cents:

        Backpanel - anything covering the back of a unit; either a circuit
board or a chassis assy or just an aluminum (or for you Brits, aluminium)
cover.

        Backplane - A (typically) large circuit board whose main purpose is
to provide the interconnection wiring amongst plug in circuit boards, I/O
connectors, etc. A backplane usually contains only connectors and possibly
some passive components such capacitors and resistors.

        Motherboard - The central circuit board in a unit. This board
usually contains large numbers of active and passive components, has
connectors for plug-in cards, and possibly I/O connectors. Think of the
motherboard in a home computer as an example.

        CPU - Any assy containing the cpu (central processing unit). This
could be the motherboard (again, as in a home computer) or simply a subassy
or plug-in.

        -MH


> -----Original Message-----
> From: Darrel Therriault [mailto:[log in to unmask]]
> Sent: Thursday, February 22, 2001 9:49 AM
> To: [log in to unmask]
> Subject: Re: [TN] backplane or backpanel
>
>
> Michael,
>
> From memory, the early 60-70's seemed to call it backpanel, then it
> switched
> to backplane
> somewhere in the 80's.  I'm not sure if there was an event that caused it
> or
> a definition.
>
> I use backplane today as a preference, although I still think they are one
> and the same.
>
> I have the same problem with PCB/PCA or PWB/PWA.  Maybe you can add that
> to
> your survey.
>
> I would like to see your tally when this is done.
>
> BTW, I'm in Oregon.
>
> DT
>
>
>
> -----Original Message-----
> From: michael [mailto:[log in to unmask]]
> Sent: Wednesday, February 21, 2001 11:44 PM
> To: [log in to unmask]
> Subject: [TN] backplane or backpanel
>
>
> Not exactly _Tech_Net material, but...
>
> I was asked recently: "Is it backplane or backpanel?" My answer was "Yes,
> it
> is." -- as far as I can tell, both are correct.
>
> But in the interests of giving a more definitive answer, I'd like to take
> a
> spot
> poll of TechNetters. Please let me know which you think is correct (if
> either),
> or preferable (if neither).
>
> It would also really help if you could indicate what country you're in, as
> I'd
> also like to see whether there are regional differences.
>
> Anyone who's interested in the results, please just say, and I'll send you
> a
> copy.
>
> Do I have too much free time? (Answer not required.)
>
> Thanks.
>
> Michael Fennema
> Uni-Circuit Inc.
>
>

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