Discussion
In the following question, match each of the items A, B and C on the left with an approximation item on the right
A. Shift register can be used 1. for code conversion
B. A multiplexer can be used 2. to generate memory slipto select
C. A decoder can be used 3. for parallel to serial conversion
4. as many to one switch
&n
Answer: B
Correct answer: A B C 3 4 1
A shift register moves bits along one place per clock, which converts a parallel word into a serial stream, so A goes with 3. A multiplexer connects one of many inputs to a single output, which is a many-to-one switch, so B goes with 4. A decoder turns a binary code into an activated line, which is a form of code conversion, so C goes with 1.
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