Computer memory system having persistent objects
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United States of America Patent
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Aug 1, 1989
Issued Date -
N/A
app pub date -
Feb 19, 1988
filing date -
Sep 11, 1985
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A uniform memory system for use with symbolic computers has a very large virtual address space. No separate files, not directly addressable in the address space of the virtual memory, exist. A special object, the peristent root, defines memory objects which are relatively permanent, such objects being traceable by pointers from the persistent root. A tombstone mechanism is used to prevent objects from referencing deleted objects.
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