Download compilers for the most used programs for engineering and research. Here a short list of links where you can download, free, these codes.
One of the most used compliers for engineering and scientific applications
G95 is a stable, production Fortran 95 compiler available for multiple cpu architectures and operating systems
Visual Basic 2008 Express is the free version of Visual Basic 2008. Containing all the basic features of the software.
The C++ Compiler 5.5 (BCC) is the foundation and core technology of C++Builder 5.
With safety-critical support features, Ada is used for military applications and in commercial projects where a software bug can have severe consequences, e.g. aviation, commercial rockets and other space systems, fly-by-wire software, etc.
Open-source, free, multi-platform BASIC compiler, with syntax similar MS-QuickBASIC.
Pascal is a small and efficient language intended to encourage good programming practices using structured programming and data structuring.