Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. In computer programming, BAL (an acronym for Business Application Language) refers to a high-level programming language similar to BASIC. It was originally defined by Honeywell in 1973 and the major diffusion was in their system '80-'90 in Europe with the work of French firm Prologue S.A. that used BAL for programming on their proprietary Operative System (Prologue). In 1986 the language was ported to the Unix platform by GuyPes. The first development environment, named Balix, are distributed starting in 1988 in Italy and France. A different evolution path was made by Prologue S.A., named ABAL, in 1992.

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