I would say it is a term that has evolved with the introduction of the plotter, Kinda like the term "pilot" evolved. It used to just mean someone who steers a ship, now it means someone who steers a ship or steers an airplane, or it can mean the first TV show in a series....go figure.
Yes I did Google it, here you go. I've never heard of a Signazon and don't respect their authority. :Big Laugh
That said, and I wish I'd said this in the first post, nice videos for somebody seeking entry level information. You make it all simple and clear and you're working slow enough that somebody new to it can follow it.