I do not know if Knoppix provides a graphical hardware manager like Windows device manager. I have seen other Linux programs that behave in a similar manner.

As seen in this thread http://www.knoppix.net/forum/viewtop...?p=86133#86133 , we helped a user identify her hardware using commands.

The command dmesg is a log of kernel & driver message.
The command lsmod lists the currently loaded drivers.
The command lscpi lists the PCI devices.

If you so desire, you can run those commands as they are safe & will not cause any problems.
I hope this helps.
James