Question

How is Encoder different from a decoder?

Answer 1

Difference between Encoder and Decoder:

An encoder turns active data signals into coded messages or analogue signals into digital signals. The combination circuit transfers binary information from 2N input lines to N output lines, each representing a bit code. When an encoder receives an input signal, its logic circuitry turns it into binary output.

S.No.	Encoder	Decoder
1.	The encoder circuit turns information signals into coded digital bit streams.	Decoders reverse the procedure and recover the original information signal from coded bits.
2.	Encoders use the applied signal as their active signal input.	The decoder receives coded binary data as input.
3.	An encoder can accept a total of 2n inputs.	The decoder accepts only n inputs.
4.	An encoder produces n lines of output.	A decoder's output lines are 2n.
5.	The encoder produces coded data bits as its output.	The decoder produces an active output signal in response to the coded data bits.
6.	The operation is straightforward.	The operation is complicated.
7.	The encoder circuit is put on the transmitting end.	The decoder circuit is situated on the receiving side.
8.	Its main logic piece is an OR gate.	Its main logic element is the AND gate, which is used in conjunction with the NOT gate.
9.	It is utilised in E-mail, video encoders, and other applications.	It is utilised in microprocessors, memory chips, and other applications.