Google Analytics connection speed

How do they find out?

[onlineleben]

Good morning,
just curious how Gogle Analytics dertermines the connection speed.

For my country (Germany) I get just below 30% each for DSL and Dialup, although I heard that DSL is what most use by now (around 70%).

Thanks for any explanations on how the small tracking code makes it possible to find out so much.

[cgrantski]

In Windows, Control Panel's Network Connection settings include a Type. Google's (and other tracking programs) javascript queries the visitor's machine for this internal information. Similar queries ask the visitor's machine about its screen resolution settings and so on.

[onlineleben]

Thanks for the reply.
Would this mean that all windows users set up on a LAN with e.g. 100 Mb but connecting to the net with say 1 Mb (from Router to net) would get reported as 100 Mb (if there were such a category)?