What useful tools has IBM already supplied on the distribution tape?
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Once the basic system is up, what are the tools and tricks that make the administrator\'s life easier? Where can you get user-written tools that enhance the function of the system? What tools are unique to this environment.
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The short answer is: it is not related, other than being a similar idea
What relationship does z/VM bear to VMWare on Intel systems?
The creation of the "z/VM" brand is part of the rebranding process IBM introduced when they realigned all their products into the eServer brand name
VM has gone through several forms in it's 30 year history
There is now an IBM mainframe overview and history presentation available from the SNA publications web site. It gives a history of both the S/3xx hardware and S/3xx operating systems for those folks new to this platform
IBM z/VM ("VM") is the most "fun" operating system running on modern mainframes if you are a programmer/expert-user type of computer person
"Mainframe" is an unscientific term that means different things to different people, but generally speaking, a mainframe is a multiuser business or scientific computer the architecture of which is optimized towards I/O (input and output)