| 摘要 |
PROBLEM TO BE SOLVED: To eliminate the need for manually changing over connections between a monitor and plural computers in a system sharing one monitor with plural computers, and to prevent the computers from being set to a wrong changeover even if the computers are increased in number. SOLUTION: A CPU 5 detects a signal outputted from a computer 1 after power is turned on, and a change-over circuit 4 automatically changes over the wiring so as to connect the computer having outputted the signal to the monitor 2, based on a change-over instruction from the CPU 5.
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