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- DF-224 abstract "The DF-224 is a space-qualified computer used in space missions from the 1980s. It was built by Rockwell Autonetics. As with many spacecraft computers, the design is very redundant, since servicing in space is at best difficult and often impossible. The configuration had three CPUs, one active and two spares. The main memory consisted of six memory units, each with 8K 24-bit words of plated wire memory, with up to 48K words total. Four memory modules could be powered up at one time, resulting in a maximum of 32K words of available memory, though some applications such as the Hubble Space Telescope used fewer memory banks to allow for graceful failure modes. There were three IO processors, one operational and two backups. The power supply consisted of 6 independent power converters, with overlapping coverage of the operating functions. The processor used fixed-point arithmetic with a two's complement format.By the standards of 2010, the computer was rather big and slow. It was roughly 45 centimeters (1.48 ft) by 45 centimeters (1.48 ft) by 30 centimeters (0.98 ft), weighed 50 kilograms (110 lb), and had a clock speed of 1.25 MHz. According to a Hubble servicing mission report, when the DF-224 was replaced by a 25 MHz Intel i486, processing power increased about 20x.".
- DF-224 thumbnail DF-224.jpg?width=300.
- DF-224 wikiPageID "28901854".
- DF-224 wikiPageLength "2747".
- DF-224 wikiPageOutDegree "18".
- DF-224 wikiPageRevisionID "588731382".
- DF-224 wikiPageWikiLink Category:Avionics_computers.
- DF-224 wikiPageWikiLink Category:Radiation-hardened_microprocessors.
- DF-224 wikiPageWikiLink Category:Spaceflight.
- DF-224 wikiPageWikiLink Computer.
- DF-224 wikiPageWikiLink Fault-tolerant_system.
- DF-224 wikiPageWikiLink Fault_tolerance.
- DF-224 wikiPageWikiLink Fixed-point_arithmetic.
- DF-224 wikiPageWikiLink Hubble_Space_Telescope.
- DF-224 wikiPageWikiLink IBM_RAD6000.
- DF-224 wikiPageWikiLink Intel_80486.
- DF-224 wikiPageWikiLink MIL-STD-1750A.
- DF-224 wikiPageWikiLink Mongoose-V.
- DF-224 wikiPageWikiLink Plated_wire_memory.
- DF-224 wikiPageWikiLink RAD750.
- DF-224 wikiPageWikiLink Rockwell_International.
- DF-224 wikiPageWikiLink Twos_complement.
- DF-224 wikiPageWikiLink File:DF-224.jpg.
- DF-224 wikiPageWikiLinkText "DF-224".
- DF-224 hasPhotoCollection DF-224.
- DF-224 wikiPageUsesTemplate Template:Convert.
- DF-224 wikiPageUsesTemplate Template:Reflist.
- DF-224 subject Category:Avionics_computers.
- DF-224 subject Category:Radiation-hardened_microprocessors.
- DF-224 subject Category:Spaceflight.
- DF-224 hypernym Computer.
- DF-224 type InformationAppliance.
- DF-224 type Avionic.
- DF-224 type Component.
- DF-224 type Computer.
- DF-224 comment "The DF-224 is a space-qualified computer used in space missions from the 1980s. It was built by Rockwell Autonetics. As with many spacecraft computers, the design is very redundant, since servicing in space is at best difficult and often impossible. The configuration had three CPUs, one active and two spares. The main memory consisted of six memory units, each with 8K 24-bit words of plated wire memory, with up to 48K words total.".
- DF-224 label "DF-224".
- DF-224 sameAs DF–224.
- DF-224 sameAs m.0ddcb10.
- DF-224 sameAs Q5204888.
- DF-224 sameAs Q5204888.
- DF-224 wasDerivedFrom DF-224?oldid=588731382.
- DF-224 depiction DF-224.jpg.
- DF-224 isPrimaryTopicOf DF-224.