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Digital Electronics

Digital Electronics
1s Complement of 11001010 is

 00110111
 11001011
 11001001
 00110101

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Digital Electronics
A hexadecimal odometer displays F 52 F. The next reading will be

F53F
G52F
F53O
F52E

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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
In which of the following base systems is 123 not a valid number?

Base 8
Base 10
Base 16
Base 3

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Digital Electronics
The most suitable gate to check whether the number of 1s in a digital word is even or odd is

 NOR
 X-OR
 NAND
 AND, OR, and NOT

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Digital Electronics
The output of a NOR gate is high

 only when all the inputs are low
 only when at least one input is high
 only when all the inputs are high
 only when at least one input is low

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