what are the characteristics which you should consider in order to describe the nature of an operating system

Question

rsmith6559 · Answer

Reliability, how often it needs rebooting.  How much time the processor spends in an uninteruptable state.  How modular the kernel is.  How loosely coupled the daemons are.  What tools are available with the OS.

anonymous · Answer

what are the main differences between mainframe  and personal computer operating system and do the differences still exist

rsmith6559 · Answer

I never really had a chance to work with mainframes, but they were usually used for multi-user, multi-tasking batch processing.  Personal computers started with very primitive, bare bones OS's, and now are too GUI-centric and more like a server model.