Abstract: The present invention is directed to a digital portable music player that includes a non volatile memory for storing and recording music files. Where at least one of the music files includes at least an audio portion and a data portion. The player includes both a display screen for displaying the data portion and a headphone jack for receiving headphones such that a user may hear the audio portion. The player yet further includes a microphone jack for receiving an external microphone. A microprocessor is included that has instructions for retrieving and decoding said one music file from the non volatile memory and instructions for playing the music file. Wherein the instructions for playing the music file include instructions for displaying the data portion over the display screen simultaneously with emitting the audio portion over headphones. The microprocessor has further instructions for recording a user's voice, coming through the external microphone, in real time with the playing of the music file.

Abstract: An appliance control system includes a central control unit and a plurality of slave units each including a user-programmable microprocessor and respectively plugged into outlet sockets of a power main in a building, appliances being respectively coupled to the slave units. The system permits manual or automatic transmission of command signals and status request signals from the central control unit to individually addressed slave units, and transmission of status signals from the slave units to the central control unit. Certain slave units include lamp dimmers which can be operated either remotely from the central control unit or locally at the slave unit, the microprocessors of these slave units being programmable to remember a predetermined brightness level, so that the lamp can be remotely turned on to that predetermined level. Means are provided for turning the appliance off at the remote appliance site while maintaining the appliance under the control of the central control unit.