Abstract: A display apparatus includes a display unit, a support, a cover member, and a first interposition member. The display unit displays an image. The support supports the display unit. The cover member is disposed with a gap between the cover member and the display unit and covers the display unit. The first interposition member is interposed between the support and the cover member, and is in contact with the support and the cover member. The first interposition member has elasticity and thermal conductance.

Abstract: A display apparatus includes a display unit, a support, a cover member, and a first interposition member. The display unit displays an image. The support supports the display unit. The cover member is disposed with a gap between the cover member and the display unit and covers the display unit. The first interposition member is interposed between the support and the cover member, and is in contact with the support and the cover member. The first interposition member has elasticity and thermal conductance.

Abstract: An information-processing device equipped with a cordless pen includes a cordless pen used for input operation and a pen storing portion for storing the cordless pen and operates: to give an alarm with a buzzer, etc., when no pen input is made and when the cordless pen is not replaced in excess of a given period of time; or to give a warning with a buzzer or the like when a cabinet of the apparatus is closed without the pen stored in the pen storage portion; or to prevent the operation of an electric power switch by means of a locking lever when the pen is not stored in place.