Exercise: Code Converters And Multiplexers

Questions for: Code Converters And Multiplexers

One way to convert BCD to binary using the hardware approach is:
A:
with MSI IC circuits
B:
with a keyboard encoder
C:
with an ALU
D:
UART
Answer: A
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What is the status of the inputs S0, S1, and S2 of the 74151 eight-line multiplexer in order for the output Y to be a copy of input I5?
A:
S0 = 0, S1 = 1, S2 = 0
B:
S0 = 0, S1 = 0, S2 = 1
C:
S0 = 1, S1 = 1, S2 = 0
D:
S0 = 1, S1 = 0, S2 = 1
Answer: D
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Why is a demultiplexer called a data distributor?
A:
The input will be distributed to one of the outputs.
B:
One of the inputs will be selected for the output.
C:
The output will be distributed to one of the inputs.
D:
Answer: A
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The primary use for Gray code is:
A:
coded representation of a shaft's mechanical position
B:
turning on/off software switches
C:
to represent the correct ASCII code to indicate the angular position of a shaft on rotating machinery
D:
to convert the angular position of a shaft on rotating machinery into hexadecimal code
Answer: A
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One application of a digital multiplexer is to facilitate:
A:
data generation
B:
serial-to-parallel conversion
C:
parity checking
D:
data selector
Answer: D
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