Welcome to
Sunbelt Computer Software
Quality Software Products for the PL/B Community

About PL/B
The PL/B programming language (formerly DATABUS) is a high-level, English-like language that is unrivalled in screen, file and character string manipulation. It is in use all over the world in many different industries. The language is continuing to evolve through the work of Sunbelt in conjunction with input from our many valued customers.

Sunbelt has been writing and selling system software for PL/B programmers since 1980. Our goal is to provide you with the best tools available so you can perform to your customers' expectations. We work hard to earn your respect. In addition to the PL/B language on both Windows and Unix, Linux and Mac, we sell

Free demos are available for nearly all of our products.


  • PL/B has incorporated file access capabilities that distinguish it from other languages. Indexed Sequential Access Method (ISAM) enables quick data retrieval. Associative Access Method (AAM) enables context sensitive retrieval while allowing dynamic file updates.
  • The screen and printer interfaces are very high level and easy to use. Sophisticated screens and reports can be generated with relative ease.
  • PL/B is inherently multiuser. No additional code is required for files to be shared amongst many users.
  • PL/B source code will compile and run without changes across many platforms. The UNIX and Windows platforms will even execute the same copy of the executable code.
  • The ISAM and AAM file access routines are included with the compiler.
  • The package includes the screen and print subsystem which supports subwindows, saving and restoring screens and full color.
  • No additional products or libraries need to be purchased to generate high performance applications.
  • Programmers from many different industries use the language to accomplish simple and complex tasks.
  • One government entity has designed and programmed a very sophisticated "mug shot" identification system to be installed in all patrol cars.
  • Another customer uses our compiler to teach programming to his Boy Scout troop.
  • Windows: Windows 10, Windows 8, Windows 7, Vista, XP, ME, 2000, NT or 98.
  • Unix, Linux, Apple Mac OS/X, AIX, HP-UX, SUN Solaris, SCO

Copyright © 2022 Sunbelt Computer Software
Last modified July 09 2019 11:03 by