Difference between revisions of "DIBOL"
m (+cat) |
(keep Chuck happy :-)) |
||
| Line 1: | Line 1: | ||
'''DIBOL''' was a [[programming language]] created by [[Digital Equipment Corporation|DEC]] in the late 1960's for business [[application]]s. | '''DIBOL''' was a [[programming language]] created by [[Digital Equipment Corporation|DEC]] in the late 1960's for business [[application]]s. | ||
| − | At a high level, it is reminiscent of [[COBOL]], as it has a 'Data Division' and a 'Procedure Division'; the syntax is closer to [[FORTRAN]], but with [[control flow|block structure]] (with 'BEGIN' and 'END' statements). It has 'internal' and 'external' [[subroutine]]s (the former without [[argument]]s, the latter with), and support for [[file]] operations. | + | At a high level, it is vaguely reminiscent of [[COBOL]], as it has a 'Data Division' and a 'Procedure Division'; the syntax is closer to [[FORTRAN]], but with [[control flow|block structure]] (with 'BEGIN' and 'END' statements). It has 'internal' and 'external' [[subroutine]]s (the former without [[argument]]s, the latter with), and support for [[file]] operations. |
| − | The original version was for the [[PDP-8 family]]; there was sufficient interest that in 1971 a team produced a better [[compiler]] and [[interpreter]]. A [[time-sharing]] [[operating system]] allowed several users to run DIBOL applications | + | The original version was for the [[PDP-8 family]]; there was sufficient interest that in 1971 a team produced a better [[compiler]] and [[interpreter]]. A [[time-sharing]] [[operating system]] allowed several users to run DIBOL applications simultaneously (in the same way that early versions of [[RSTS]] provided time-sharing for [[BASIC]] users on machines without [[hardware]] support for time-sharing). |
In the mid-70's a version was produced for the [[PDP-11]]; DIBOL was eventually made available under [[RSTS/E]], and later under [[RSX-11M-PLUS]]. It was also made available on the [[VAX]]. | In the mid-70's a version was produced for the [[PDP-11]]; DIBOL was eventually made available under [[RSTS/E]], and later under [[RSX-11M-PLUS]]. It was also made available on the [[VAX]]. | ||
Revision as of 22:52, 13 October 2019
DIBOL was a programming language created by DEC in the late 1960's for business applications.
At a high level, it is vaguely reminiscent of COBOL, as it has a 'Data Division' and a 'Procedure Division'; the syntax is closer to FORTRAN, but with block structure (with 'BEGIN' and 'END' statements). It has 'internal' and 'external' subroutines (the former without arguments, the latter with), and support for file operations.
The original version was for the PDP-8 family; there was sufficient interest that in 1971 a team produced a better compiler and interpreter. A time-sharing operating system allowed several users to run DIBOL applications simultaneously (in the same way that early versions of RSTS provided time-sharing for BASIC users on machines without hardware support for time-sharing).
In the mid-70's a version was produced for the PDP-11; DIBOL was eventually made available under RSTS/E, and later under RSX-11M-PLUS. It was also made available on the VAX.
