Coding fundamentals in digital systems An encoder in digital electronics performs which basic conversion?

Difficulty: Easy

Correct Answer: noncoded information into coded form

Explanation:


Introduction / Context:
Encoders and decoders are complementary building blocks used in keyboards, communication, and multiplexing systems. Knowing their direction of conversion is key for correct application.



Given Data / Assumptions:

  • “Noncoded” refers to many individual lines or states (e.g., one-hot lines).
  • “Coded” refers to a compact binary representation.


Concept / Approach:
An encoder compresses multiple input lines (often one-hot) into a smaller set of binary outputs. Conversely, a decoder expands binary inputs into multiple output lines. Level inversion (HIGH to LOW) is unrelated to encoding.



Step-by-Step Solution:
Identify device: encoder.Function: map many inputs to fewer binary outputs.Result: noncoded → coded.


Verification / Alternative check:
Example: a 10-to-4 keypad encoder maps ten keys to a 4-bit code.



Why Other Options Are Wrong:
“Coded to noncoded”: that is a decoder's job.“HIGHs to LOWs” / “LOWs to HIGHs”: describe inversion or logic-level translation, not encoding.


Common Pitfalls:
Confusing priority encoders (which also resolve multiple simultaneous inputs) with decoders.



Final Answer:
noncoded information into coded form

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