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摘要

PURPOSE:To attain free input from both personal computers located apart from each other by deciding the priority of inputs with a remodeled program and writing an input signal in the input buffer of a memory according to the priority. CONSTITUTION:Let at input from a keyboard 7 be B and an input sent from a remote location to a control personal computer (PNU) 5 be A, then a remodeled program 9b discriminates which of the inputs A, B is to be written in the key input buffer 9c of a memory 9. For example, when the key entry of a keyboard 11 is operated earlier at a remote location than that this side, the input A is entered to a serial interface 12a in the connection of A-C while the input A is regarded to receive priority C at the PNU 5. Thus, the input program 9b writes the input signal A into a key input buffer 9c. Since the similar operation is implemented simultaneously even at a remote location side, the output pattern of the general purpose software 10 is subjected to write and correction.