Question: What is the output of a binary to BCD converter for the binary input 1001?

Options:

1. 0001 0001
2. 0000 1001
3. 0000 0001
4. 0000 1000

Correct Answer: 0000 1001

Solution:

The binary input 1001 is equal to 9 in decimal, which is represented as 0000 1001 in BCD.