System for vending program cartridges which have circuitry for inhibiting program usage after preset time interval expires

摘要

A vending machine stores a plurality of video game programs which may be selected for purchase. The game program is transferred to a programmable cartridge which the user inserts into the machine. The programmable cartridge is then removed for use on a separate video game unit. The programmable cartridge includes a use interval circuit which is preset by the vending machine to expire after a time interval. When expired, the transferred program is rendered inoperable.