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Q. |
The word ‘serial’ describes |
A. | an inexpensive card reader that reads one column at a time |
B. | a character-by-character transfer of data between an input/output or auxiliary storage unit and a channel |
C. | is a serial communication physical interface through which information transfers in or out one bit at a time |
D. | both (a) and (b) |
E. | None of these |
Answer» D. both (a) and (b) |
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