A Payload and General Support Computer (PGSC) manufactured by GRiD Systems modified for use aboard the Space Shuttle, measuring approximately 11.5 x 9 x 15 when open, stenciled with part numbers on the top, “P/N SED33103332-713, S/N 1045.” Ruggedly made with a magnesium case and additional cooling fan. One of the NASA modifications was the substitution of an external power connector (a NASA-spec circular connector) for the commercial one and disconnection of the internal power supply from the standard GRiD modular power supply slot (a standard GRiD power module will not work in this computer). Includes the associated carrying case. In fine condition. These were among the earliest, if not the first, laptop computers flown on the Shuttle; this particular computer was flight-qualified, but its flight status is unknown.
Terms and abbreviations used in our descriptions.