[Year 12 SofDev] SD key knowledge

[Mark KELLY]

*SD U3O1 KK04
Purposes and functions of the physical layer (Layer 1) of the OSI and the
relationship of the physical layer to the Transmission Control
Protocol/Internet Protocol model*

For quite some time now I've been avoiding this KK because I'd rather clean
a dead dog's ears than spend time on the OSI.

But in the end I had to find the cotton buds and get stuck in, and I think I
have a reasonable overview of the OSI and how TCP/IP maps to it.  (even
produced a draft slideshow <http://www.vceit.com/slideshows/SD-OSI.ppt>).

But the second part of KK04 really has me baffled: *the relationship of the
physical layer to the Transmission Control Protocol/Internet Protocol model.
*
I know that TCP/IP's Network interface layer maps to OSI's physical layer
(and the data link layer), but for the life of me I can't see how it's any
more significant than any of OSI's or TCP/IP's other layers.

Can someone suggest why the relationship between the OSI physical layer and
TCP/IP is so significant?
Has this relationship been in the papers?  Has this physical relationship
resulted in offspring?
Is Mr OSI going to be on Oprah... or the Jerry Springer show?

-- 
Mark Kelly
Manager of ICT, Reporting, IT Learning Area
McKinnon Secondary College
McKinnon Rd McKinnon 3204, Victoria, Australia
Direct line / Voicemail: +613 8520 9085, Fax +613 9578 9253
kel at mckinnonsc.vic.edu.au

VCE IT Lecture Notes: http://vceit.com
Moderator: IT Applications Edulist

All generalisations are false, except this one.
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