MPW

MPW (Macintosh Programmer's Workshop) was Apple Computer's first development environment native to the Classic Macintosh, and the successor to Lisa Workshop, the Pascal development environment for the Apple Lisa. Prior to MPW, applications for the Macintosh had to be developed on the Lisa.

MPW was unofficially supplanted by the third-party THINK Pascal as the Pascal development environment of choice for m68k-based Macintosh computers. Apple's Xcode was the official replacement for MPW, supporting Universal Pascal Interfaces (UPI) and Carbon (toolbox) for the design of applications for PowerPC based Macs running OS 8 and OS 9, and early versions of OS X.