| http://www.w3.org/ns/prov#value | - The switch interface 5 constantly detects respective operational states of the individual operators on the switch section 5A and outputs switch information, corresponding to the detected operational states of the operators, to the CPU 1 via the data and address bus 1D. The display interface 6 is an interface for visually showing, on a display device 6A such as an LCD or CRT, various information, s
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