| 摘要 |
PURPOSE:To output automatically a program load request by detecting a switch of connecting relation between an input/output device and a central processor from a change of the discrimination information and loading a microprogram corresponding to the switched central processor. CONSTITUTION:Central processors 100-1-100-n are connected to an input/output device 200 via a switch device 300 and also to a memory 400 storing various types of microprograms. These central processors send periodically the state reading indication including the discrimination information to the device 200. While the device 200 detects a switch of connecting relation between the device 200 and processors 100-1-100-n from a change of the discrimination information. Then a microprogram corresponding to the switched central processor is loaded.
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