Carburetor question?

Could somebody show me a picture of a one barrel carburetor and a picture of a two barrel carburetor so I can visually tell the difference.

I'll look for them but its kind of easy, one barrel has one and 2 barrel has 2 same with 4 barrel.

heres a 4 barrel, notice the 4 barrels


heres a 1 barrel


not a good pic but its a 2 barrel

LaiedMazda87, thanks soo much. You explained everything.