Matches in DBpedia 2014 for { <http://dbpedia.org/resource/IBM_System/4_Pi> ?p ?o. }
Showing items 1 to 20 of
20
with 100 items per page.
- 4_Pi abstract "The IBM System/4 Pi is a family of radiation hardened avionics computers used, in various versions, on the B-52 Stratofortress bomber, the F-15 Eagle fighter, E-3 Sentry, NASA's Skylab, MOL, and the Space Shuttle, as well as other aircraft. It descends from the System/360 mainframe family of computers. The Skylab space station employed the model TC-1, which had a 16-bit word length and 16,384 words of memory with a custom input/output assembly.The top-of-the-line 4 Pi is the AP-101, used in the B-52. The U.S. Navy used a similar variant, the AN/ASQ-155, in the carrier based A-6E/A-6E TRAM medium attack aircraft. The Shuttle is controlled by five AP-101 computers, four of which are arranged in a redundant configuration, with the fifth as backup.The name of the system is derived from the fact that the angular measure of a complete sphere (solid angle) is 4π steradians, while the angular measure of a complete circle is 360 degrees; hence System/4 Pi and System/360. This implies that System/4 Pi is a version of the IBM System/360 for the three-dimensional world of avionics.".
- 4_Pi thumbnail Space_Shuttle_upgraded_GPC.jpg?width=300.
- 4_Pi wikiPageExternalLink space_shuttle.html.
- 4_Pi wikiPageExternalLink space_skylab.html.
- 4_Pi wikiPageExternalLink Ch3-2.html.
- 4_Pi wikiPageID "858524".
- 4_Pi wikiPageRevisionID "601833762".
- 4_Pi hasPhotoCollection 4_Pi.
- 4_Pi subject Category:Avionics_computers.
- 4_Pi subject Category:IBM_computers.
- 4_Pi comment "The IBM System/4 Pi is a family of radiation hardened avionics computers used, in various versions, on the B-52 Stratofortress bomber, the F-15 Eagle fighter, E-3 Sentry, NASA's Skylab, MOL, and the Space Shuttle, as well as other aircraft. It descends from the System/360 mainframe family of computers.".
- 4_Pi label "IBM System/4 Pi".
- 4_Pi label "IBM System/4 Pi".
- 4_Pi sameAs 4_Pi.
- 4_Pi sameAs m.03hxm2.
- 4_Pi sameAs Q3146519.
- 4_Pi sameAs Q3146519.
- 4_Pi wasDerivedFrom 4_Pi?oldid=601833762.
- 4_Pi depiction Space_Shuttle_upgraded_GPC.jpg.
- 4_Pi isPrimaryTopicOf 4_Pi.
