X : They use typewriting printing mechanism, wherein a hammer strikes the paper through a ribbon in order to produce output. |
Y : They do not touch paper while printing. They use chemical, heat or electric signal to etch the symbols on paper. |
A) X - Impact printer, Y - Non-impact
B) X - Common printer, Y - Uncommon printer
C) X - Non-impact printer, Y - Impact
D) X - Uncommon printer, Y - Common printer
Correct Answer: A
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