Computer Basic Information
What is the main difference between a mainframe and a super computer?

Supercomputers are focused to execute few programs as fast as possible while mainframe uses its power to execute as many programs concurrently.
Super computer is much larger than mainframe computers.
Super computers are much smaller than mainframe computers.
Supercomputers are focused to execute as many programs as possible while mainframe uses its power to execute few programs as fast as possible.
None of these

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Computer Basic Information
The magnetic disks and drums are like recirculating shift registers because

stored data is available for reading over and over again in the same order.
None of these
their access times are about the same
they have about the same storage capacity
their storage is non volatile

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