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Basics of Decoder  Decoder is a combinational logic circuit that converts abinary code into the desired output signals. It is called decoder because it performs the reverse process of encoder. The process of converting binaryinput code into desirable output is known as decoding.  Figure 1 is the logic symbol of decoder with ‘n’ inputs and ‘m’ outputs. In short, it is multiple inputs and multiple outputs device with proper conversion system.  Note that decoder performs the reverse operation of the encoder. A decoder has ‘n’ number of input lines and ‘m’ number of output lines. There are 2n possible input combinations and the number of outputs (m) are less than or equal to 2n. Decoder converts an n bit code to single active output. The information present in one code is obtained back into the desired code. In general Decoder is circuit which convert specific code into more general form of code. A decoder is a logic circuit that accepts a set of inputs that represents a bina...