COBOL


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Related to COBOL: FORTRAN

COBOL:

see programming languageprogramming language,
syntax, grammar, and symbols or words used to give instructions to a computer. Development of Low-Level Languages

All computers operate by following machine language programs, a long sequence of instructions called machine code that is
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.

Cobol

 

(English acronym for COmmon Business Oriented Language), an artificial language for describing accounting, economic, and administrative tasks. The language was created in the USA in 1958–60. COBOL provides a visual and workably compact recording of problem-solving algorithms in a form independent of any specific computer. Compared to ALGOL, it has more in common with the usual language of business operations. For example, with COBOL it is possible to use expressions like “Read the guide card” and “At the end of the file, turn to completion of calculations.” Programs using COBOL usually include a large number of commands (tens and hundreds of thousands) and are complicated complexes of standardized subprograms that provide solutions to planning and economic problems.

COBOL

[′kō‚bȯl]
(computer science)
A business data-processing language that can be given to a computer as a series of English statements describing a complete business operation. Derived from common business-oriented language.

COBOL

, Cobol
a high-level computer programming language designed for general commercial use

COBOL

COBOL

(COmmon Business Oriented Language) A high-level programming language that has been the primary business application language for mainframes as well as for the variety of minicomputers that flourished throughout the 1970s and 1980s. It is a compiled language and one of the first high-level languages ever developed. Officially adopted in 1960, COBOL stemmed from FLOWMATIC, a language developed in the mid-1950s by Grace Murray Hopper (later Rear Admiral Hopper) for the UNIVAC I.

COBOL is very wordy (see COBOL fingers). Although mathematical expressions can also be written like other programming languages (see example below), its verbose mode is very readable for a novice. For example, multiply hourly-rate by hours-worked giving gross-pay is self-explanatory. COBOL is structured into the following divisions:

Division Name    Contains

 IDENTIFICATION   Program identification.
 ENVIRONMENT      Types of computers used.
 DATA             Buffers, constants, work areas.
 PROCEDURE        The processing (program logic).


The following COBOL example for an earlier IBM 370 mainframe converts a Fahrenheit number to Celsius. To keep the example simple, it performs the operation on the operator's terminal rather than a user terminal.

  IDENTIFICATION DIVISION.
  program-ID.  example.

  ENVIRONMENT DIVISION.
  configuration section.
  SOURCE-COMPUTER.   IBM-370.
  OBJECT-COMPUTER.   IBM-370.

  DATA DIVISION.
  working-storage section.
  77 FAHR  picture 999.
  77 CENT  picture 999.

  PROCEDURE DIVISION.
  display 'Enter Fahrenheit ' upon console.
  accept FAHR from console.
  compute CENT = (FAHR- 32) * 5 / 9.
  display 'Celsius is ' CENT upon console.
  goback.


IBM COBOLs


In 1994, IBM dropped support of OS/VS COBOL, which conforms to ANSI 68 and ANSI 74 standards and limits a program's address space to 16 bits. IBM's VS COBOL II (1984) and COBOL/370 (1991) conform to ANSI 85 standards and provide 31-bit addressing, which allows programs to run "above the line."

COBOL/370 is more compliant with AD/Cycle, has more string, math and date functions, including four-digit years, allows development through a PC window and provides enhanced runtime facilities.
References in periodicals archive ?
The isCOBOL Runtime Environment is 100 percent Java, so COBOL applications can be deployed across multiple platforms using a single code base.
Since the isCOBOL Runtime Environment is written 100% in Java, COBOL application developers can develop and deploy across many platforms, including AIX, HP-UX, Solaris, Linux, Windows, Mac OS, and mainframe systems, using a single code base.
NetCOBOL is a COBOL development environment and suite of tools to build fast, mission-critical business systems on open platforms, including Microsoft's .NET Framework.
The company efforts to expand into areas such as Euro conversion tools in mid-1998, and more recently e-commerce transformation tools for the web-enablement of mainframe applications written in Cobol, hasn't had a noticeable effect on the company's bottom line.
Once established, such erroneous truisms or the abomination of Cobol become difficult to rectify.
Cobol programmers are much in demand because of the so-called Millennium Bug, which means computers worldwide will be unable to recognise the date 2000 and will stop working seconds into the new century.
Sedlock, chief administrative and information officer at Cushman & Wakefield, says that courses on Cobol are now being given so that programmers can cash in on the fix frenzy.
1960s and 1970s programs, written in older languages such as Assembler, RPG, PL/1, and COBOL, must be deciphered and modified, line by line.
"Winning over people later in the technology life cycle is much harder: They need to see references from people just like themselves." Since Katz's company targets Cobol engineers (who tend to be exceptionally late adopters), he's fine tuned the use of customer testimonials to build greater "credibility and identification."
That is the date when much of the world's COBOL software, the de facto standard for large corporate accounting and finance programs, is supposed to stop working because the date function wasn't designed to operate past the end of the century.
Kurney does warm that the programs are probably unintelligible to anyone who does not know COBOL or who is not currently learning it.