Prism 7 for Windows runs under either the 32- or 64-bit versions of Windows Vista, 7, 8 or 10. Prism will run in a screen as small as 800 x 540. While it runs fine on 64 bit versions of Windows, it is a 32 bit program.
Prism 7 for Macintosh requires OS X 10.9 (Mavericks) or later. If you use OS X 10.7 or 10.8, Prism will launch and seems to run ok but we haven't tested Prism thoroughly on these versions of OS X and can't provide much support.
Prism windows requires 60 megabytes of space on the hard drive. Prism Mac requires 80 megabytes space.
Prism must connect to the internet to verify the license when it is first activated and also at at least once every 30 days (or every 20 launches, whichever comes sooner).