| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent a storage unit such as a hard disk unit, etc., to be carelessly detached when a computer is in a power off state. SOLUTION: A user is informed by the output of speech or light emission that a cover, etc., physically connecting a device housing and a storing a unit is detached. In this case, contact points are respectively provided in the housing and the cover to constitute a switch 3. The on/off state of this switch 3 is detected to output speech from a speaker 10. Information can be given by emitting light or vibrating the housing instead of speech.</p> |
