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.

Abstract: An in-circuit programming station for a computer and an adapter is provided. This station is used with many printed circuit boards of differing dimensions. This station acts as an interface between a printed circuit board and an in-circuit programming computer. This station also acts to download a program memory into some form of read only memory (ROM) attached to the printed circuit board. The station has an end wall, a platform wall, and an adjustable guide subassembly. The adapter has a connector array. The adjustable guide subassembly has an X-axis and a Y-axis and a Z-axis disposed in quadrature and includes a rail member, first and second adjustable brackets for adjustment parallel to the X-axis, first and second adjustable horizontal members for adjustment parallel to the Y-axis, and first and second adjustable vertical members for adjustment parallel to the Z-axis.