A BCD to decimal decoder would be required to have:
A) three input lines and nine output lines.
B) four input lines and ten output lines.
C) nine input lines and three output lines.
D) ten input lines and four output lines.

Question

Quizplus · Accepted Answer

A BCD (Binary-Coded Decimal) decoder translates a 4-bit binary input into a decimal output. Since there are 10 possible decimal digits (0 through 9), the decoder needs 4 input lines (to represent numbers 0-9 in binary) and 10 output lines (one for each decimal digit).

A BCD to Decimal Decoder Would Be Required to Have