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Electronics and Communication Engineering (ECE) : Digital Electronics - Quiz(MCQ)
Why is a decoder used in digital electronics?
A)
It is used to divide address bus and data bus.
B)
To convert non coded information into a binary coded form.
C)
To convert coded information into a non-coded form.
D)
None of the above

Correct Answer : Option (C) :   To convert coded information into a non-coded form.


Explanation : Decoder is usually used to convert the coded information (BCD) into a non-coded form. In other words, decoders are defined as an electronic device that is used to convert digital signal to an analog signal. The decoders are used in many communication devices that are used to communicate between two devices. The decoder allows n number of inputs and generates 2n numbers of outputs. For example, if we give two inputs, four by two decoder will produce four outputs.

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