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COBOL stands for COmmon Business-Oriented Language and is one of the oldest high-level programming languages. As the name suggests, its primary domain is in business, finance and various administrative systems for governments and firms and runs on large computers. COBOL was developed by a group of computer professionals called the Conference on Data Systems Languages (CODASYL) in 1959. After that it has several improvements and modifications have been done to improve the language. In 1968, American National Standards Institute (ANSI) developed a standard form of the language to overcome the problem of incompatibility between the various versions of COBOL and was known as ANS (American National Standard) COBOL. A later version of COBOL called COBOL 97 includes object-oriented features as well as many conventional improvements.
COBOL is a wordy language i.e. in a COBOL program everything is spelled out. Although the programs are much bigger than compared to any other language but they are easy to read and understand. COBOL language is the first language that automated business. It permits the name that can be used in that particular context of the program. In COBOL, variable definition and file records are quite clear and explained in detail. Also for reports like accounting reports, the lines to be printed are also mentioned. It can be easily integrated with the Internet. It has rich class libraries and allows object, visual programming environments.
Most COBOL applications comes under the category of OLTP (On-line transaction Processing) where several instances of the program runs parallel on independent transactions. The other category where COBOL applications fall is Batch programs where a larger number of records are handled by larger programs and it is done by similar processing. This is standard “read-modify-write” loop used in several COBOL programs.
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