EMERGING TRENDS IN COMPUTING
CLOUD COMPUTING
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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How many bits are needed to represent 128 values?
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6
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7
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8
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9
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Explanation:
Detailed explanation-1: -We can count the number of zeros and ones to see how many bits are used to represent 128 in binary i.e. 10000000. Therefore, we have used 8 bits to represent 128 in binary.
Detailed explanation-2: -reason for getting this doubt is-128 representation in binary form is 1000 0000.In this MSB is 1 which is the sign bit and magnitude is 0 which is not-128.
Detailed explanation-3: -The magic number seven is the number of chunks of information a person can hold in working memory at the same time. A chunk is a unit of some kind. It could be a letter, a word, or a short sentence. Miller examined short-term memory tasks and found that typical subjects could hold about 7 chunks in memory at once.
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