Domotics refers to integrating computer and robotics technologies to remotely control appliances and devices in homes. It aims to connect all home automation systems to allow total control from anywhere. The document discusses domotics systems which study and facilitate control of all devices in a building. It presents communication protocols like X10, ZigBee, and Z-Wave and describes the hardware and software components of a domotics platform including local control units that connect devices and an IP backbone through different ports.