Ramac Websites:
cbttape.org
CBT Tape Home Page - MVS Freeware
The CBT tape is a collection of freeware almost all open-source distribution for the IBM mainframe MVS and OS/390 operating system environment. The entire collection of free...
interpex.com
Interpex Limited - Specialists in PC Based Geophysical Software
Specialists in PC Based Geophysical Software for 1D, 2D forward and inverse modeling.