Computer Basic Information
A type of line printer that uses an embossed steel band to form the letters printed on the paper is

Band printer
Laser printer
None of these
Dot-matrix printer
Golf ball printer

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

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

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