An apparatus having a programmable processor and a memory for performing a plurality of user-selectable control functions includes a database for storing a plurality of items associated with each of the control functions. The tilt drive unit is designed to keep the blind slats in a titled-open position during extension or retraction of the slats. The second precharge transistor is brought into a cut-off state during a standby state in which a memory cell corresponding to the second precharge transistor does not read nor write data but holds date. A provided apparatus comprises: a storage device; and a processor connected to the storage device, wherein the processor is operative to receive commentary of a first user, and to provide a payment from a second user to the first user.