What is the number of bit patterns provided by a 7-bit code ?
Correct answer: C. 128
- A. 256
- B. 512
- C. 128
- D. 64
Explanation
Each bit has two possible values, so a 7-bit code provides 2^7, or 128, distinct patterns. This is why standard 7-bit ASCII has 128 possible code values.
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