Date: Mon, 18 Mar 1996 11:13:00 -0800 From: Scott Johnson <srj@nsd.3com.com> To: Michael Smith <msmith@atrad.adelaide.edu.au> Cc: dwhite@resnet.uoregon.edu, ssriva1@umbc.edu, questions@freebsd.org Subject: Re: Installation of FreeBSD 2.1 Message-ID: <199603181913.AA06790@orodruin.NSD.3Com.COM> References: <Pine.BSF.3.91.960317214600.454G@riley-net170-164.uoregon.edu> <199603180704.RAA24617@genesis.atrad.adelaide.edu.au>
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ssriva1> Another question I have is about the mouse. I have a Logitech two
ssriva1> button mouse with a round circular plug that connects to the back
ssriva1> of the computer. Is this a bus mouse or a PS/2 mouse?
dwhite> Well, it's both :-) Those are synonyms.
msmith> No, they're not. "bus" mice have a micro hung off the AT bus;
msmith> PS/2 mice have keyboard-style interfaces and hang off the
msmith> keyboard controller.
msmith> Very _very_ different. The above is almost certainly a PS/2
msmith> rodent, as busmice are virtually extinct.
Just because bus mice are 'virtually extinct' doesn't mean that he
hasn't picked up a bus mouse somewhere. Take it from me, we have
hundreds of 'em around here... Although you won't find them on new
machines, I will concede.
The easiest way to tell is to look at the connector. A PS/2 rat will
have a plastic keying pin (an oblong pin) in the center of the
connector, while the busmouse will have a plain din-type (I don't
think it's exactly a DIN connector) plug (or a DB connector if it's
_ancient_.) There is a variant of the busmouse called an "InPort"
mouse (I think it's MicroSquash only), I don't know what the
difference is between those and bus mice.
--
--srj MIPS, n. Acronym for "Meaningless Indications of
o_O Processor Speed". --M. Werner
=( ) = -----------------------------------------------------------
U Ack! Scott Johnson 3Com Corporation srj@3com.com 408-764-6248
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