What is the difference between decoder and encoder ?

What is the difference between decoder and encoder ?
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Differences between decoders and encoders Differences between decoders A decoder is a logic circuit that decodes a code. Used in computer memory . It takes a maximum of 2n output from n input . The difference of the encoder works in contrast to the encoder decoder. It is attached to the keyboard in the input state. Out of the maximum 2 ” inputs, 1 or 0 outputs are available in n output lines .
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