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Direct Access Storage Devices
Information Structure and File Organization
The Query Language
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accession number ACCT assigned block buffer Cellular Serial chain Chapter contains core core memory Data Cell DATA CONDITIONS descriptors Detail diagram Directory Decoder disjunctive normal form Disk Pack document example Executive file organization file record file structure file system formulations fragment function head disk head of list Hierarchic indicated information structure information system input interrecord processing intersection INVC Inverted List system INVTY Key Directory Key Name keys and qualifiers labeled length key line printer link address list length list search list structured logical record magnetic tape Master record memory requirement ment milliseconds movable head Multilist system Name/Value on-line systems operation parameters performed physical record procedure query language query processor random access real-time Reference File Relocation retrieval sequence space brooming specific storage stored subfile subrecord Table techniques terminal nodes threaded list three-level tree tion track variable length