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This numbering is generated by Natural during program creation. Line numbers used by the compiler and editors, and can have important logical functions in the programs. Comments can be included in two ways: Full-line comments are identified by a "*" or "**" prefix. Annotated code lines have a "/*" - everything to its right is a comment. Examples:
COBOL (/ ˈ k oʊ b ɒ l,-b ɔː l /; an acronym for "common business-oriented language") is a compiled English-like computer programming language designed for business use. It is an imperative, procedural, and, since 2002, object-oriented language.
At the height of COBOL usage in the 1960s through 1980s, the IBM COBOL product was the most important of any industry COBOL compilers. In his popular textbook A Simplified Guide to Structured COBOL Programming , Daniel D. McCracken tries to make the treatment general for any machine and compiler, but when he gives details for a particular one ...
McNeil designed the template COBOL programs and Christensen coded the macros to generate the actual COBOL programs. They created a system that could generate COBOL code from screen layouts created by users. The COBOL ran in IBM's TSO interactive environment and it allowed the users and engineers to test screen flow. When a user wanted a change ...
GnuCOBOL translates a COBOL program (source code) into a C program. The C program can then be compiled into the actual code used by the computer (object code) or into a library where other programs can call (link to) it. On UNIX and similar operating systems (such as Linux), the GNU C compiler is used for this process.
A single program deck, with individual subroutines marked. The markings show the effects of editing, as cards are replaced or reordered. Many early programming languages, including FORTRAN, COBOL and the various IBM assembler languages, used only the first 72 columns of a card – a tradition that traces back to the IBM 711 card reader used on the IBM 704/709/7090/7094 series (especially the ...
Records essentially follow the COBOL pattern, consisting of fields of different types: this allows complex internal structure such as repeating items and repeating groups. The most distinctive structuring concept in the Codasyl model is the set. Not to be confused with a mathematical set, a Codasyl set represents a one-to-many relationship ...
When compiling Pacbase code it is first translated into COBOL and then compiled to binary. PACBASE was an early advanced computer-aided software engineering (CASE) software for mainframes and Unix systems from CGI (Compagnie Générale d'Informatique, a French software house) that supported a wide variety of databases, including DB2 and Oracle ...