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Shifting a binary number to the left by one position is equivalent to ________.

multiplying by two
multiplying by four
dividing by two
dividing by four

Correct Answer: multiplying by two

Explanation:

Shifting a binary number by one bit is equivalent to multiplying (when shifting to the left) or dividing (when shifting to the right) the number by 2.

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Assume an 8-bit serial in/parallel out shift register needs to be cleared but has no clear input. How many clock cycles are required before a zero applied to the input appears on the QH output?

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