| 摘要 |
PURPOSE:To make it difficult to illicitly copy and transform the program information by preparing a program storage and a machine word instruction reader device in a program card and sending a machine word instruction to a computer main body in each step. CONSTITUTION:A program card 1 storing the program information is put into a program card reader 2 so that a computer main body 3 can have an access to the card 1. Then a program is carried out based on the program information. The card 1 uses a so-called IC card that can record the program information by its contained integrated circuit such as a ROM, a RAM, an EEPROM, etc., and also in a cartridge type in addition to a card type. Thus the program information is stored in the card 1 and then sent to the main body 3 every time a reading request is given from the main body 3. |
