Borland Pascal (1993) 23 Windows

Borland Pascal is basically a "professional" version of the Turbo Pascal product that was introduced after Turbo Pascal 6. It includes both the DOS IDE and compiler as well as the Windows IDE from Turbo Pascal For Windows. Borland Pascal was succeeded by Borland Delphi

• 7.x

Borland Turbo Pascal (1983) 89 Windows

Borland Turbo Pascal is a Pascal programming language compiler with an Integrated Development Environment targeted at the hobbyist and entry-level market. There were versions for CP/M and DOS. For a time, it was sold along side their professional "Borland Pascal" product line. Borland also produced a set of "toolbox" libraries along side their earlier versions.

• 1.x (Win)

Microsoft Pascal (1981) 18 DOS OS2

The Microsoft Pascal Compiler is Microsoft's implementation of the ISO Pascal language for DOS, Xenix, and OS/2. It was among Microsoft's early language products provided for DOS. It was superseded by Microsoft QuickPascal. The Microsoft Pascal Compiler was licensed to IBM, who sold it as the IBM Pascal Compiler.

• 4.0