| 摘要 |
A system includes a computer main unit ( 3 ) for performing data processing, a cradle ( 5 ) for a display device that is connected to the computer main unit so that signals or data can be communicated between them, a wireless display ( 6 ) that is detachably connected to the cradle and is capable of communicating signals or data with the cradle or the computer main unit via wireless communication, a connector, a resistor or the like as a detecting portion for detecting a connected or detached state of the wireless display with respect to the cradle, and a NOR circuit ( 35 ) or a power control portion ( 33, 33 B) as a control portion for inhibiting power control by an operation in the computer main unit when the wireless display is detached from the cradle and the computer main unit is working.
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