Conversion of BCD to Binary

To convert BCD (Binary-Coded Decimal) to binary, we need to understand the BCD representation and the corresponding binary values.

BCD Representation:
BCD is a binary encoding of decimal numbers, where each decimal digit is represented by a 4-bit binary code. The BCD representation of decimal digits from 0 to 9 is as follows:

Decimal | BCD
--------|-----
0 | 0000
1 | 0001
2 | 0010
3 | 0011
4 | 0100
5 | 0101
6 | 0110
7 | 0111
8 | 1000
9 | 1001

Given BCD:
BCD 0001 0010 0110

Conversion Process:
To convert BCD to binary, we need to convert each BCD digit to its corresponding binary value and concatenate them.

Step 1:
Convert the first BCD digit (0001) to binary. Looking at the BCD table, we find that 0001 corresponds to the binary value 0001.

Step 2:
Convert the second BCD digit (0010) to binary. According to the BCD table, 0010 corresponds to the binary value 0010.

Step 3:
Convert the third BCD digit (0110) to binary. Referring to the BCD table, 0110 corresponds to the binary value 0110.

Concatenation:
Concatenate the binary values obtained from each BCD digit.

Binary value after concatenation: 0001 0010 0110

Therefore, the binary representation of the given BCD (0001 0010 0110) is 0001 0010 0110.

Conclusion:
The correct answer is option 'A' (1111110).