WebCam: a NetCam used on the WorldWide Web (WWW).
Many WebCams exist in people's offices, and the like.
What's original about the
WearComp/WearCam presented here is that it
is attached to someone as opposed to being part of the
environment (attached to a wall, on a tripod, or the like).
NetCam: a camera that puts images onto the internet.
The particular NetCam presented here is a wearable NetCam,
rather than one that is fixed at a particular location.
Visualfilter: A NetCam combined with a display device,
operating on a different channel than the NetCam (so that both
can operate simultaneously).