This illustration of a typical home network puts the Cable head end between the customer's House on the left and the Internet on the right, with arrows pointing to and from the house to the cable head end, and to and from the cable head end to the Internet, suggesting that signals travel back and forth between them. They are all connected by a line that travels from the Internet to the Cable head end, and from the Cable head end across telephone wires into the House, where it connects with a modem and a router and is converted to WiFi, where it connects with the homes devices: a laptop computer, a refrigerator, a thermostat, a desktop computer and a wireless keyboard.