COMAL

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COMAL (Common Algorithmic Language) is a computer programming language developed in Denmark by Benedict Løfstedt and Børge Christensen in 1973.

The "COMAL 80 PROGRAMMING LANGUAGE REPORT" contains the formal definition of the language.

[edit] Design

COMAL was actually created as a mixture of the prevalent educational programming languages of the time, BASIC and Pascal, and was meant to introduce structured programming elements in an environment where BASIC would normally be used.

[edit] History

In the early 1980s, Apple Computer won a contract to supply Apple II computers running CP/M and COMAL to Irish secondary schools.

In 1990 Thomas Lundy and Rory O'Sullivan produced the definitive text on COMAL Programming.^{[citation needed]} They matched and compared COMAL with BBC Structured Basic.

[edit] Availability

COMAL is available for:

• BBC Micro
• Commodore PET
• Commodore 64
• Amiga
• Compis
• Scandis
• CP/M
• IBM PC
• Tiki 100
• ZX Spectrum
• Mac OS X

[edit] Examples

Conditions:

IF condition THEN
  instructions
ENDIF

Loops:

FOR number:= 1 TO 1000 DO   
 PRINT number
ENDFOR

[edit] Example program

10 PAGE
20 FOR number:= 1 TO 10 DO
30  PRINT "THIS IS JUST AN EXAMPLE"
40 ENDFOR
50 END " "

[edit] External links

• OpenComal – an Open Source implementation of COMAL for UNIX, MS-DOS and Windows
• MacharSoft
• Description of COMAL, versions, and characteristics
• Annotated Bibliography of the COMAL language
• [1] – an implementation of COMAL for Mac OS X

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