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PROMENADE - AN IMPROVED INTERACTIVE-GRAPHICS MAN/MACHINE SYSTEM FOR PATTERN RECOGNITION. APPENDIX 9e. THE PUTGET VIRTUAL-MEMORY FILE-HANDLING SYSTEM.
STANFORD RESEARCH INST MENLO PARK CALIF
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The PUTGET system performs two important functions. It allows access to the disk via FORTRAN statements without need for programmer knowledge of lower-level disk IO software or of the actual file formatting on the disk itself. It acts as a virtual-core memory system, so that the user is not responsible for allocation of either core buffer or disk file space. Frequently used disk records are maintained in the core memory so that they are generally available at core access rates rather than disk access rates. The efficiency with which PUTGET can perform this type of operation depends somewhat on the data structure it works best for sequential access to contiguous files. Author
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