[comp.protocols.appletalk] LocalTalk v. AppleTalk

bin@primate.wisc.edu (Brain in Neutral) (11/17/90)

Just what is the distinction between LocalTalk and AppleTalk, anyway?

This is something that has puzzled me for some time.  I notice that
Inside AppleTalk doesn't define *either* term in its glossary...
-- 
Paul DuBois
dubois@primate.wisc.edu

       "If you're not a docter, you're just pants" -- Ian D., age 3 1/2

peirce@outpost.UUCP (Michael Peirce) (11/18/90)

In article <3449@uakari.primate.wisc.edu>, bin@primate.wisc.edu (Brain in Neutral) writes:
> 
> Just what is the distinction between LocalTalk and AppleTalk, anyway?
> 
> This is something that has puzzled me for some time.  I notice that
> Inside AppleTalk doesn't define *either* term in its glossary...

AppleTalk refers to the whole protocol suite.

LocalTalk refers to the built in hardware found in all Macs.

AppleTalk runs on top of LocalTalk Link Access Protocol when you use
the LocalTalk hardware as well as EtherTalk LAP (for Ethernet)
and TokenTalk LAP (for Token Ring).

Of course, this is current usage.  In old AppleTalk documentation
they never use the word LocalTalk, but rather use AppleTalk to refer
to both the protocol suite and the hardware.  Once other hardware
became available for running AppleTalk, the old fuzzy names didn't
work.

-- michael 

P.S. Then there was the pre-AppleTalk name for AppleTalk: AppleBus,
but that's another story...


--  Michael Peirce         --   {apple,decwrl}!claris!outpost!peirce
--  Peirce Software        --   Suite 301, 719 Hibiscus Place
--  Macintosh Programming  --   San Jose, California 95117
--         and Consulting  --   (408) 244-6554

mst@mx.csun.edu (Michael Temkin) (11/19/90)

In article <3449@uakari.primate.wisc.edu> bin@primate.wisc.edu (Brain in Neutral) writes:
>Just what is the distinction between LocalTalk and AppleTalk, anyway?
>
>This is something that has puzzled me for some time.  I notice that
>Inside AppleTalk doesn't define *either* term in its glossary...
>-- 
>Paul DuBois
>dubois@primate.wisc.edu
>
>       "If you're not a docter, you're just pants" -- Ian D., age 3 1/2

AppleTalk is the protocol.  LocalTalk is the physical cabling, this
includes phonenet.

Mike.
--
Mike Temkin
mst@csun.edu
Cal. State U. Northridge, School of Engineering and Computer Science
Voice phone: (818) 885-3919

Bruce.Hoult@bbs.actrix.gen.nz (11/21/90)

In article <b.W8JT7D@outpost.UUCP> peirce@outpost.UUCP writes:
> P.S. Then there was the pre-AppleTalk name for AppleTalk: AppleBus,
> but that's another story...

We still have the ABusRecord type in the alternate interface to AppleTalk.

tom@wcc.oz (Tom Evans) (11/22/90)

In article <3449@uakari.primate.wisc.edu>, bin@primate.wisc.edu (Brain in Neutral) writes:
> Just what is the distinction between LocalTalk and AppleTalk, anyway?

"AppleTalk" is the name of the protocol suite. "LocalTalk" is the name
of the cable that plugs into your Mac - really LocalTalk is an ISO
Data Link Layer thingdroid.

Likewise EtherTalk is what you have when it is running over Ethernet
physical cable, and TokenTalk is...

Lots of people (me included) get unjustly annoyed if you use the wrong
term. If you want to know the whole box and die, get "Inside AppleTalk
Second Edition" - nice light bedtime reading.

========================
Tom Evans  tom@wcc.oz.au  
Webster Computer Corp P/L, 1270 Ferntree Gully Rd Scoresby, Melbourne 3179
Victoria, Australia 61-3-764-1100  FAX ...764-1179