This is a popular line of electronic, centrally controlled devices. It was originally designed by BSR in the early 1970s, a full generation before it became popular. BSR has since licensed the technology to several other companies. The product ownership rights are now owned by X10 Wireless Technologies, Incoporated. Devices include switches, dimmers, thermostats, garage door openers, outlets, timers and other electrical mechanisms. All can be controlled by a standard ASCII coded controller or by a computer interfaced to such a controller. See the various X10 technologies at HTTP://WWW.X10.COM.