Pascal Programming Question:

There have been many implementations of Pascal, both those that follow and those that don't follow the ISO 7185 standard. For the most part, ISO 7185 was followed on large computer installations during the early days of Pascal (1973-1990), and some installations on microcomputers. The other dialect that became popular was the UCSD (University of California at San Diego) Pascal, followed by Borland's Turbo Pascal. Although there are virtually no current implementations of UCSD Pascal, Borland's products exist today for advanced IBM-PC compatibles under Borland's Delphi name.

When the IBM-PC became 32 bit with the introduction of the Intel 80386, virtually all of the 32 bit implementations of Pascal on the PC were ISO 7185 conforming. However, there was a large shakeout of compiler vendors in the early 1990's that removed many of these installations from the market.