Abstract: A portable computer system having a loudspeaker enclosure defined by a printed circuit board, a keyboard section cover and a gasket. A second enclosure is defined by an existing frame, the keyboard section cover and a second gasket. Advantageously, a loudspeaker mounting system provides positive urging of the speaker with the keyboard section cover and all other openings, such as the grill attachment apertures and any other openings, are sealed to achieve the total enclosure concept for a speaker system for a portable computer.

Abstract: A portable computer system having a loudspeaker enclosure defined by a printed circuit board, a keyboard section cover and a gasket. A second enclosure is defined by an existing frame, the keyboard section cover and a second gasket. Advantageously, a loudspeaker mounting system provides positive urging of the speaker with the keyboard section cover and all other openings, such as the grill attachment apertures and any other openings, are sealed to achieve the total enclosure concept for a speaker system for a portable computer.

Abstract: An AC-powerable portable computer has a housing structure with an external opening normally covered by a removable wall releasable interlocked with the housing structure. A security bracket is captively mounted on the housing structure for movement relative thereto between an extended position in which the bracket projects outwardly of the housing structure, and a retracted position in which the bracket projects into the interior of the housing structure and is essentially flush with its exterior surface. The bracket in its retracted position permits the normal removal of the housing wall. However, when the bracket is in its extended position an inner end portion thereof blocks an interior tab portion of the housing wall in a manner preventing its removal. An opening in an outer end portion of the bracket is positioned outwardly of the housing structure when the bracket is its extended position.