Q.

The excess-3 code for 597 is given by                      

A. 100011001010
B. 100010100111
C. 010110010111
D. 010110101101
Answer» A. 100011001010
Explanation: the addition of ‘3’ to each digit yields the three new digits ‘8’, ’12’ and ’10’. hence, the corresponding four-bit binary equivalents are 100011001010, in accordance to 8421 format.
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