The z/OS Concepts and Components course describes the evolution of mainframe computing and provides descriptions of the major components that comprise today's z/OS environment. Details of general z/OS processing concepts are also provided. Operations, programming, and technical support personnel requiring knowledge about z/OS; this. Double-click the file. Locate the ISZ file icon and double-click it. If you have the right program. Jul 13, 2020 A copy of Mac OS X 10.5 Leopard (or earlier): We can’t tell you how to obtain this, but a simple Google search will. You will need an.ISO file that should be saved directly to your iPhone or iPad. Apple Macintosh IIsi Specs. All Macintosh Models All 1990 Models Dynamically Compare This Mac to Others. Distribute This Page: Bookmark & Share The Apple Macintosh IIsi features a 20 MHz 68030 processor, 2 MB or 5 MB of RAM, and a 40 MB, 80 MB, or 160 MB. Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.) and possible program actions that can be done with the file: like open isz file, edit isz file, convert isz file, view isz file, play isz file etc. (if exist software for corresponding action in File-Extensions.org's database).