A computer system for high-performance video and audio manipulations comprising a locked memory cartridge and an audio/video/compact disk (CD) drive controller/coprocessor. The computer system has a central processing unit (CPU) with at least one bus associated therewith, with the bus having at least...http://www.google.es/patents/US5666516?utm_source=gb-gplus-sharePatente US5666516 - Protected programmable memory cartridge having selective access circuitry
Protected programmable memory cartridge having selective access circuitry