Digital Electronics - Combinational Logic Circuits - Discussion

BCD(binary coded decimal).

0001 0010 0110 i.e 126
By using 8421.

64+32+16+8+4+2+1.
1 1 1 1 1 1 0 i.e 126,
So, the ans is 1111110.

BCD Number is 0001 0010 0110 i.e. 126.

Binary number for 127 = (128-1) i.e. (1111111).
Therefore BCD 126 = 1111110,
Option A is correct.

What is BCD clear details what is 126?

What is BCD?

What is BCD?

Anyone explain me clearly.

What if the BCD value more than 9?

Do we have to add 6 or something?

Firstly convert the given BCD number into equivalent Decimal Number.

0001 0010 0110 = 126. Here each four bits are correspond to equivalent decimal number.

Think about the number 126. It was nearer to number 128.

128 = 2^7.

It means if you convert it to binary, it consists seven bits are zero '0' and '1' is the left most bit for decimal digit which is in 2^n form.

The equivalent binary number can be find like this only.

126 = 128-2.
(10000000-10) = 1111110.

The equivalent decimal code is 126. Using successive divisions, you get 1111110. (base 2).

(NB: You write form the top to the button).

Thank you all.

BCD to binary conversion is very simple.

0001 0010 0110 = 126.
126 is BCD code of the binary value.

To convert BCD to binary value 126 is div by 2.
Then we will get the answer like 1111110.

Its decimal equivalent will be 126 because
0001=1
0010=2
0110=6
then converting 126 into binary by successive division by 2,it yields 1111110 i.e. The required answer.