gear question to you mechanical geniuses!

[DebW]

Okay. there are these different kinds of gear groups. campy veloce, campy record, shimano ultegra..

If i bought a bike with Campy Veloce, does that mean I would get the same gears as another campy veloce bike? the same granny gear and the same speeding gear? or is that a separate entity? I'm not talking custom bikes.
I'm talking more of off the shelf types of bikes.

Thanks

No. You can still pick your cassette range and chainring options within a group. Though you are limited to 39-53 double or a 34-50 compact double in chainrings. 10-speed cassette options are:

11-25, 12-23, 12-25, 13-26, 13-29, 14-23

And I don't see why you couldn't mix some Veloce components with another Campy group, or perhaps even some Shimano parts if you wanted to.