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Digital Electronics

Digital Electronics
The output of a gate is HIGH when at least one of its inputs is LOW. It is true for

 NAND
 OR
 X-OR
 NOR

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Digital Electronics
A half adder is a ________ circuit.

 None
 Combinational
 Both A and B
 Sequential

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Digital Electronics
In digital systems, 1 byte is equal to ________ bit(s).

 2
 8
 4
 1

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Digital Electronics
The voltage levels for negative logic system

 may be negative or positive
 must necessarily be positive
 must necessarily be negative
 must necessarily be 0 V and –5 V

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Digital Electronics
An all or nothing gate is the other name of

 X-OR gate
 X-NOR gate
 OR gate
 AND gate

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Digital Electronics
A small circle or dot on top of an IC represents

 Pin14
 Pin13
 Pin2
 Pin1

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