Dr. Pascal is a programming environment for writing, running and debugging Pascal programs. This is our premier "visible" product--it shows the internal operation of running Pascal programs. Dr. Pascal can be used to write and run Pascal programs by itself without other software. It can also be used to develop and test programs that will later be compiled with an ordinary Pascal compiler. For professional programmers, Dr. Pascal speeds development of new software and promotes more reliable, more portable code. For novices, visible execution facilitates learning how programs work. Available for Windows, Macintosh, MS-DOS and VAX-VMS. To buy, click on ePurchase, or for more information, click on Dr. Pascal.

Extended Pascal Compiler is an industrial-strength compiler for MS-DOS and Windows. It produces separately-runnable .EXE files from Pascal source code. The compiler is run from the DOS command line. Unlike Dr. Pascal, it does not include a programming environment with editor. It can be used to compile programs developed with Dr. Pascal, or, with any text editor, the compiler can be used independently of Dr. Pascal. For more information, click on Extended Pascal Compiler.

 pix  mac-pix and pc-pix are like Dr. Pascal in that they implement the full Standard Pascal langauge, and they have extensive error checking and clear error messages. However, pix is just a once through, interpret-and-run system--a bare-bones environment. For any serious programming, even just for class exercises, you will save a lot of time using an environment like Dr. Pascal rather than pix. On the other hand, pix could be used by an experienced programmer to just run a simple program that does not require much programming development or testing. Or, pix may be of interest to programming buffs who would like to experience programming the way it was done before integrated environments (pix uses the famous compile-edit-compile-test cycle). And, bargain hunters may take some pleasure in obtaining the least expensive Pascal system you can buy, anywhere in the world. To buy, click on ePurchase, or for more information, click on pix interpreters.

Source Code Sets Visible Software supplies sets of Pascal software including source code, documentation and executables. Visible Software reviews and improves the documents and code, packages it, and charges a small fee to cover our costs. For more information, click on Source Code for a summary description of all our Pascal Source code packages, or go straight to a detailed description of one package by clicking on Programming tools, tools for manipulation Pascal source code, or Pascal-S, a compiler for a subset of Pascal.