Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/Flex_machine> ?p ?o }
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- Flex_machine abstract "The Flex Computer System was developed by Michael Foster and Ian Currie of Royal Signals and Radar Establishment (RSRE) in Malvern, England, during the 1980s. It used a tagged storage scheme to implement a capability architecture, and was designed for the safe and efficient implementation of strongly typed procedures.The hardware was custom and microprogrammable, with an operating system, (modular) compiler, editor, garbage collector and filing system all written in ALGOL 68RS. There were (at least) two incarnations of Flex, implemented using hardware with writable microcode. The first was supplied by Logica to an RSRE design, and the second used an ICL PERQ. The microcode alone was responsible for storage allocation, deallocation and garbage collection. This immediately precluded a whole class of errors arising from the misuse (deliberate or accidental) of pointers.Another notable feature of Flex was the tagged, write-once filestore. This allowed arbitrary code and data structures to be written and retrieved transparently, without recourse to external encodings. Data could thus be passed safely from program to program.In a similar way, remote capabilities allowed data and procedures on other machines to be accessed over a network connection, again without the application program being involved in external encodings of data, parameters or result values.The whole scheme allowed abstract data types to be safely implemented, as data items and the procedures permitted to access them could be bound together, and the resulting capability passed freely around. The capability would grant access to the procedures, but could not be used in any way to obtain access to the data.".
- Flex_machine wikiPageID "376748".
- Flex_machine wikiPageLength "2787".
- Flex_machine wikiPageOutDegree "11".
- Flex_machine wikiPageRevisionID "623831308".
- Flex_machine wikiPageWikiLink ALGOL_68RS.
- Flex_machine wikiPageWikiLink Abstract_data_type.
- Flex_machine wikiPageWikiLink Abstract_data_types.
- Flex_machine wikiPageWikiLink Capability-based_security.
- Flex_machine wikiPageWikiLink Category:Mainframe_computers.
- Flex_machine wikiPageWikiLink International_Computers_Limited.
- Flex_machine wikiPageWikiLink Logica.
- Flex_machine wikiPageWikiLink Malvern,_Worcestershire.
- Flex_machine wikiPageWikiLink Microcode.
- Flex_machine wikiPageWikiLink PERQ.
- Flex_machine wikiPageWikiLink Royal_Signals_and_Radar_Establishment.
- Flex_machine wikiPageWikiLink Ten15.
- Flex_machine wikiPageWikiLinkText "FLEX".
- Flex_machine wikiPageWikiLinkText "Flex machine".
- Flex_machine wikiPageWikiLinkText "Flex".
- Flex_machine wikiPageWikiLinkText "RSRE FLEX file system".
- Flex_machine wikiPageWikiLinkText "RSRE Flex".
- Flex_machine hasPhotoCollection Flex_machine.
- Flex_machine wikiPageUsesTemplate Template:Distinguish.
- Flex_machine wikiPageUsesTemplate Template:Other_uses.
- Flex_machine wikiPageUsesTemplate Template:Refbegin.
- Flex_machine wikiPageUsesTemplate Template:Refend.
- Flex_machine subject Category:Mainframe_computers.
- Flex_machine type Class.
- Flex_machine type Computer.
- Flex_machine type Thing.
- Flex_machine comment "The Flex Computer System was developed by Michael Foster and Ian Currie of Royal Signals and Radar Establishment (RSRE) in Malvern, England, during the 1980s. It used a tagged storage scheme to implement a capability architecture, and was designed for the safe and efficient implementation of strongly typed procedures.The hardware was custom and microprogrammable, with an operating system, (modular) compiler, editor, garbage collector and filing system all written in ALGOL 68RS.".
- Flex_machine label "Flex machine".
- Flex_machine differentFrom FLEX_(operating_system).
- Flex_machine differentFrom FlexOS.
- Flex_machine sameAs m.0212qy.
- Flex_machine sameAs Q5458927.
- Flex_machine sameAs Q5458927.
- Flex_machine wasDerivedFrom Flex_machine?oldid=623831308.
- Flex_machine isPrimaryTopicOf Flex_machine.