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Digital Electronics

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

 OR
 NOR
 X-OR
 NAND

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Digital Electronics
The output of a gate is HIGH if and only if all its inputs are LOW. It is true for

 X-OR
 X-NOR
 NAND
 NOR

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Digital Electronics
Which of the following operations is commutative but not associative?

 OR
 X-OR
 NAND
 AND

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Digital Electronics
A bubbled NAND gate is equivalent to a

 NOR gate
 NAND gate
 OR gate
 X-OR gate

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Digital Electronics
The logic expression A + B can be implemented by giving inputs A and B to a two-input

 NOR gate
 X-NOR gate
 NAND gate
 X-OR gate

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Digital Electronics
NAND. gates are preferred over others because these

provide maximum density in a chip.
have lower fabrication area
can be used to make any gate
consume least electronic power

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