Computer Basic Information
An advantage of blocking a tape is that

less tape is used to store the same amount of data
additional processing time is consumed
None of these
the direct file method can be emulated
tapes contain less data and longer tapes

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

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

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