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Digital Electronics

Digital Electronics
What is the minimum number of NOR gates required realizing an X-OR gating?

 3
 4
 6
 5

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Digital Electronics
The XS-3 code is a

 weighted code
 self-complementing code
 cyclic code
 error-correcting code

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Digital Electronics
The NOR gate can function as a NOT gate if

 one input is set to 0
 inputs are left open
 one input is set to 1
 all inputs are connected together

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Digital Electronics
Consider the following multiplication: (10w1z) × (15)10 = (y01011001)2 Which one of the following gives appropriate values of w,y and z?

 w = 0,y = 0,z = 1
 w = 1,y = 1,z = 0
 w = 0,y = 1,z = 1
 w = 1,y = 1,z = 1

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Digital Electronics
The state of a flip-flop can be switched by changing its ________ signals.

 triggering
 input
 output
 clearing

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Digital Electronics
The number FF in base-16 systems will be equal to ________ in binary system.

 10101010
 11111111
 10011001
 11101110

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