Pronunciation of "Gerber"
I believe it is based on the original plotter file format for machines made by Gerber Technology  I had a friend that worked there for a while and they pronounced the name of  the company exactly like the baby food as Matt says, Grrr Brrr like you're growling at someone but also chilly :)  

Joseph Gerber was an Austrian, hence it is a German name. There is no "g" pronounced as "jerk" in the German language, it is always like "girl".