| 摘要 |
PURPOSE: To provide a computer system for the operation of a video and audio with high performance including a locked memory cartridge, audio, video, CD driver controller, and auxiliary processor. CONSTITUTION: This computer system is provided with a CPU with which at least one bus is related, and the bus is provided with at least one bus line. A readable memory, memory control circuit, lock control circuit, and connector are included in a cartridge 14, and they are all mutually connected. The memory, memory control circuit, and lock control circuit can be circuit-connected with the CPU so as to be attachable and detachable by using a connector. The memory control circuit scrambles one part of the bus line at the time of reset, scrambles data in the memory by this, and releases the scramble of the bus line in response to an input from the lock control circuit. |
