What does the 300 level webcast or speak mean (in MSDN, webcast, trainig, etc.)?

Question

I suppose this is either some Microsoft or even US-wide scheme. However I have no idea what does 300, 400, etc. mean. Can someone please explain this? What do those numbers mean? Is it MS thing or is it in wider usage?

Answer 1

It's an MS thing: http://support.microsoft.com/gp/webcastlevels

Answer 2

The 100, 200, ... vernacular is used widely in colleges in the US. Generally 100 level classes are for freshman (first year), 200 for sophomores (second year), 300's for juniors (third year), etc.

Microsoft has a listing of their usage (see Kurt's post)

Answer 3

This is roughly modelled on the way college courses are typically numbered (at least here in the US that I'm aware of).

See: College Course Numbers @ Everything2