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Communication and Memory
The Library as a System
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abstracts alphabetical batch batch processing Belshazzar binary bits called Calvin Mooers carrier waves cathode cathode-ray cathode-ray tube central computer Chapter choice classification system collection communication compiler program computer store computer's containing copy core store current awareness data base descriptors devices diagram disks display docu documents electric electronic engineering equipment example faceted classification fact retrieval holes information centers information retrieval input inquiry journals keywords librarian light pen machine magnetic drums magnetic tape mechanical ments method National Physical Laboratory on-line operation order-analytical output paper tape particular permalloy photograph PHYSICAL position printed produce pulse punched puter recall factor records relevant retrieval system scientific scientists screen sequence shelf address shelves shows signals sort spectral type speed storage switching technical tion typewriter valve voltage wire words writing