Question

How many outputs are present in a BCD decoder?

(a) 4

(b) 5

(c) 15

(d) 10

The question was asked in an interview for job.

My question is taken from Parity Generators/Checkers in portion Combinational Circuits of Digital Circuits

Answer 1

Correct option is (d) 10

For explanation I would say: A binary decoder is a combinational logic circuit which decodes binary information from n-inputs to a maximum of 2^n outputs. A BCD to Decimal decoder has 10 number of outputs because the decimal digit’s range is from 0 to 9.