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Space Shuttle Avionics: Difference between revisions
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== Hardware overview == | == Hardware overview == | ||
The DAP physically runs on a set of five General Purpose Computers (GPCs). These are 1980 hardware, i.e. their performance and memory is limited, which means that no GPC ever runs the full set of avionics functions available, rather the functions are loaded as needed and distributed over the different GPCs. | The DAP physically runs on a set of five General Purpose Computers (GPCs)<ref>http://history.nasa.gov/computers/Ch4-1.html</ref>. These are 1980 hardware, i.e. their performance and memory is limited, which means that no GPC ever runs the full set of avionics functions available, rather the functions are loaded as needed and distributed over the different GPCs. | ||
The DPS information is displayed on the Multifunction Electronic Display System (MEDS), consisting of a set of nine multifunction display units (MDUs) at the front of the cockpit and two at the rear of the flightdeck. Three keyboards, two at the center console, one in the rear of the flight deck, allow to enter information, and edgekeys located below the MDU screens allow to change menu items. | The DPS information is displayed on the Multifunction Electronic Display System (MEDS), consisting of a set of nine multifunction display units (MDUs) at the front of the cockpit and two at the rear of the flightdeck. Three keyboards, two at the center console, one in the rear of the flight deck, allow to enter information, and edgekeys located below the MDU screens allow to change menu items. | ||