What do PE controllers see when we are on the ground?

[BeechV35Pilot]

At towered airports, what do the PE controllers use to "see" our aircraft when we are on the ground? Do they have a radar screen showing ground traffic or do they actually have a simulator to see us from a tower cab perspective? I am curious if we were to taxi incorrectly how long it would take before the controller caught the mistake?

[Orest Skrypuch]

Fast. The virtual software used has an ability to zoom down to show aircraft movements on the ground - so you BEHAVE yourself.

I was setting up at SMO, was on the north ramp, but had to shutdown and restart, ended up on the south ramp. When I started taxiing, turned the wrong way. Didn't take long to be advised of a "shorter" route to runway 21.

* Orest