Abstract: According to one embodiment, a portable information processing device includes first and second units, each having a flat approximately rectangular solid case. The first unit has as many magnets as the second unit has. Each of the magnets of the first unit attracts corresponding magnet of the second unit when the case of the first unit and the case of the second unit are placed one upon the other.

Abstract: According to one embodiment, a portable information processing device includes first and second units, each having a flat approximately rectangular solid case. The first unit has as many magnets as the second unit has. Each of the magnets of the first unit attracts corresponding magnet of the second unit when the case of the first unit and the case of the second unit are placed one upon the other.

Abstract: According to an aspect of the invention, an information processing apparatus includes a main body having a top face, a display connected to the main body by a hinge and pivotally moves between a first state where the top face is covered with the display and a second state where the top face is exposed, a counter which stores a number of times the state has changed between the first state and the second state, a monitor which detects a malfunction in the hinge when the number of times reaches a given number, and a data transmitter which sends data corresponding with the detected malfunction.

Abstract: According to an aspect of the invention, an information processing apparatus includes a main body having a top face, a display connected to the main body by a hinge and pivotally moves between a first state where the top face is covered with the display and a second state where the top face is exposed, a counter which stores a number of times the state has changed between the first state and the second state, a monitor which detects a malfunction in the hinge when the number of times reaches a given number, and a data transmitter which sends data corresponding with the detected malfunction.

Abstract: According to one embodiment, An electronic apparatus includes: a receptacle that is not compatible with a plug having a support magnet around a plug terminal; a magnet that is disposed so that one pole of the magnet is opposed to a certain pole of the support magnet when the plug is inserted in the receptacle, the certain pole having the same polarity as the one pole.

Abstract: An information processing apparatus includes a display device, an input unit, a determining unit and a processing unit. The input unit inputs an event instructing to change display luminance of the display device. The determining unit determines as to which one of a battery and an external power supply drives the apparatus. The processing unit changes the display luminance in a range of a first luminance value to a second luminance value being larger than the first luminance value in accordance with the input event when the determining unit determines that the external power supply drives the apparatus. The processing unit changes the display luminance in a range of a third luminance value to a fourth luminance value being larger than the third luminance value and being smaller than the second luminance value in accordance with the input event when the determining unit determines that the battery drives the apparatus.

Abstract: An electronic apparatus includes a housing having an outer wall, a pointing device having a flat input surface, and an operation-area indicating sheet. The pointing device is contained in the housing such that the input surface is placed on the inner surface of the outer wall of the housing. The operation-area indicating sheet is removably provided on the outer surface of the outer wall of the housing at a position corresponding to at least part of the input surface of the pointing device.

Abstract: An electronic apparatus comprises a main body operable in a first state and a second state, a power switch which is disposed in the main body and at least a part of which is made of a light transmissive member, a light emission unit disposed in the main body to emit a light of a first color or a second color through the light transmissive member, and a control unit for controlling the light emission unit to emit a light of the first color when an operation state of the main body is the first state, and to emit a light of the second color when the operation state of the main body is the second state.

Abstract: A color display system for use in stadiums, arenas or streets has a matrix of three-primary triads of light-emitting elements controlled by electric signals for displaying images, characters, and/or other patterns in colors. The color display system comprises display units arrayed in horizontal rows and vertical columns and each having simplified electric connector means for external electric connection and means for effectively cooling the light-emitting elements which are packed at high density. Each of the display units has two horizontal rows of light-emitting elements mounted on a front panel of a display unit body, a control circuit housed in the body, and electric connector means mounted on a rear panel of the body. The display units are located closely in each horizontal row and spaced at intervals in each vertical column. A ventilator is disposed behind the display units for cooling the light-emitting elements.