You can run bare bones OS/360 using hercules-390 [1], which emulates old and new mainframe architectures. You can play with OS/360 versions like MFT and MVT, r

You can run bare bones OS/360 using hercules-390 [1], which emulates old and new mainframe architectures. You can play with OS/360 versions like MFT and MVT, read source code (or try!), do a system generation (recompile the "kernel") and run ita facilities. Hercules-390 has a very active community [2]. PS: OS/360 and many other older IBM systems are now public domain and have almost all source code available. [1] http://www.hercules-390.eu http://www.hercules-390.eu [2] http://groups.yahoo.com/group/bercules-390 http://groups.yahoo.com/group/bercules-390