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 computer is much larger than mainframe computers.
None of these
Super computers are much smaller than mainframe computers.

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Computer Basic Information
The essential difference between an operating system like Linux and one like Windows is that

there are multiple versions of Linux, but only one version of Windows.
None of these
any programmer can modify Linux code, which is not permitted with Windows.
Windows can run with an Intel processor, whereas Linux cannot.
Linux is proprietary, whereas Windows is not.

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