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Digital Electronics

Digital Electronics
A demultiplexer is a

 N-to-N device
 N-to-1 device
 1-to-N device
 1-to-1 device

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Digital Electronics
A half adder is a ________ circuit.

 Combinational
 Sequential
 Both A and B
 None

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Digital Electronics
The following code is not a BCD code.

 XS-3 code
 all of these
 Gray code
 8421 code

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Digital Electronics
Combinations that are not listed for the input variables are

 Overflow
 Carry
 Don't Care
 Borrow

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Digital Electronics
What logic function is produced by adding an inverter to each input and output of an OR gate?

 NOR
 X-OR
 AND
 NAND

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Digital Electronics
(11011) 2 in BCD 8421 code is

 01101100
 00011011
 11011001
 00100111

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