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: A notebook computer is provided with a collapsible keyboard structure having keys supported on scissored linkage arm assemblies in which, in response to closing of the computer housing lid, key return spring portions of the keyboard are shifted away from their normal underlying relationships with the keys, and the scissored linkage arm assemblies and keys are permitted to retract to a storage/transport orientation in which the overall thickness of the keyboard structure is reduced by an amount essentially equal to the stroke distance of the keys. When the lid is subsequently opened, the key return spring portions are shifted back to their normal underlying relationships with the keys, and the keys and scissored linkage arm assemblies are forced outwardly by the return spring portions to their extended, operative orientations above the return spring portions.