I'd slap John's wrist for calling it a USB "output" if it weren't for the fact that I must beg his forgiveness for answering a question directed to him. You are correct. What you have on your computer are USB ports. They can be used for both goesinta and comesaouta. (Man I love using all those geeky technical terms )

Jack

"People generally quarrel because they cannot argue." - G. K. Chesterton