Answer / aniket zatale

8:3 encoder means its having 8 input line and three output
line. out of 8, 3 lines get selected and make a desire
output combination.
3:8 decoder eans its having 1 input line ,3 select line and
8 output line. witht the combination of three select line
we can connect input line to the output line out of 8.

Answer / mathi

8:3 encoder has 8 input lines and 3 output lines.Each input lines influencing all the output lines basically its corresponding binary format. If there are selection lines it is a multiplexer; not an encoder.

3:8 decoder has 3 input lines and 8 output lines with each output representing one of minterms of 3 inputs. its just the reverse of encoder.

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