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What Are FourthGeneration Languages?
Categories of Languages
Specification Languages 379
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4GLs action diagram automatically bracket build CALL PROJE2 checks CIRCULATION-DATA COBOL column compiler complex create cursor CUSTOMER data base data dictionary data items data model data processing data-base decisecond decision-support default options dialogue display DP professionals easy employ EMPLOYEE end users ENDIF English enter errors example executed Expert systems facilities fast field Figure files forecast format fourth-generation languages functions graphics guages HOSPNAME human factoring ILENGTH information center input instruction panels INTELLECT interaction lines of code linked logic LOOP machine mainframe manipulate menu mnemonics on-line operations ORDER.DISCOUNT PERFORM TAB personal computers PICTURE S9i8 PL/I possible problems procedural programming languages prototype query language RAMIS requirements screen SELECT semantics shows specification language spreadsheet spreadsheet tools statements STRBUFF MOVE structures systems analysts techniques terminal third-generation languages tion types UPDATE user computing user-friendly user's V-13 BLANKA V-ll variables