Ans: As we know to get Excess-3 from BCD we need to add 3 (0011) to the BCD number. So the circuit to implement the above is:
Tag: bcd
Efficiency of BCD codes
Q- Calculate the efficiency of BCD codes wrt Binary number representation for (a) 4-bit (b) 8-bit. Ans: (a) With 4-bits we have 10 numbers represented in BCD while 16 in Binary hence Efficiency = (10/16)* 100 = 62.5% (b) With 8-bits we have 100(102) numbers represented in BCD while 256(28) in Binary hence Efficiency = (100/256)* 100 […]
BCD Codes
It is an abbreviation of Binary coded decimal. In this coding each decimal digit is represented by the equivalent 4 bits. So if we are to represent 1110 in binary it is 1011 while in BCD it is 0001 0001. So we can see corresponding binary & BCD equivalent of decimal numbers in the following table: […]