What Is A System Module? I Still Don't Understand

Tech Support: "What do you have connected to the back of your computer?"

Customer: "I have a printer, a modem and the System module."

Tech Support: "Excuse me, but could you repeat the last item?"

Customer: "The System module."

Tech Support: "The System what?"

Customer: "It's the module to upgrade the system to.."

Tech Support: "...and it plugs into the back of your computer?"

Customer: "Yes."

Tech Support: "Does this module plug into anything else?"

Customer: "It plugs into the wall outlet."

Tech Support: "Ma'am, that's the power cord."

Customer: "No, I can see the power cord, and this module is plugged in right next to it."

Tech Support: "Ma'am, there is no such thing as a System module."

Customer: "Oh my goodness, I'm sorry, I forgot. It's the power supply to the HyperCard."

Tech Support: "Ma'am, HyperCard does not have a separate power supply. Would you mind following the cord from the outlet until you find what it plugs into?"

Customer: "Ok."

Ten minutes later... Customer: "It hooks into the printer."