A user may operate many devices, each of which may provide a set of actions, such as installing firmware or software or viewing the contents of the device. The sound and light apparatus can be used indoors or outdoors to enhance a landscape plan or an interior design plan. Each chipset allows or disallows software booting, based reading a certificate index value from a given customer’s certificate, reading an OTP CID from OTP, as pointed to the by certificate index value, and evaluating the OTP CID with a certificate CID read from the certificate. Next, the system programs the hot key with the selected web site address, so that depressing the hot key causes a web browser on the computer system to navigate to a web site located at the web site address. If a terminal receiving digital broadcast transmits the received digital broadcast to a neighboring terminal, a control unit enters a sleep mode after buffering received data for a predefined time. The belt sander may include a motor operationally coupled to the sanding assembly and opposite the sanding surface, the motor being configured to rotate at least the first roller and thereby rotate the sanding belt around the first roller and the second roller, as well as a handgrip formed around at least a portion of the motor and substantially encasing the motor.