| 摘要 |
A programming device for programming a programmable storage area of a programmable ROM of a processing device which is assigned to effect a processing operation according to a processing program stored in the ROM, the programming device first copies a programming program in a RAM connected to a CPU which is connected to the programmable ROM as well as the RAM, and then replaces the processing program currently stored in the programmable storage area with a new processing program, according to the programming program stored in the RAM. The programming program may be either stored in the programmable storage area of the ROM, or received from a suitable program output device or a program transmitting device, together with the new processing program. Also disclosed are the program output device, the program transmitting device, and a communication system including a plurality of processing devices, the program transmitting device, and a network through which the processing devices are connected to the program transmitting device.
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