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The Payload and General Purpose Computer is modified version of a commercial laptop computer and is one of the first of many laptops that have been used by Shuttle astronauts for a variety of mission duties. The computer, manufactured by Grid Systems, Inc., was chosen because of its durable metal case and because its memory did not use a rotating disk, which at that time was considered prone to mechanical failure. Modifications were made to adapt it for use in space by SAI Technology, a division of SAIC. NASA and other contractors also developed custom software for the device.

This laptop flew on Shuttle mission STS-56, in April 1993. NASA transferred this computer to the Museum in 1998.

 Display Status

This object is on display in Human Spaceflight at the Steven F. Udvar-Hazy Center in Chantilly, VA.

Human Spaceflight
Object Details
Country of Origin United States of America Type INSTRUMENTS-Computers, General Purpose Manufacturer Grid Systems, Inc.
 Subcontractor SAIC
 Dimensions 3-D: 29.2 x 38.1 x 7.6cm (11 1/2 x 15 x 3 in.)
 Materials Metal, Black
Keyboard and Display - Plastic
 Inventory Number A19980083000 Credit Line Transferred from NASA, Johnson Space Center. Data Source National Air and Space Museum Restrictions & Rights Usage conditions apply
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