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Digital Electronics

Digital Electronics
The parity of the binary number 11011001 is

 even
 odd
 not known
 same as the number of zeros

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Digital Electronics
A bubbled NOR gate is equivalent to a

 NAND gate
 X-OR gate
 NOR gate
 AND gate

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Digital Electronics
Why decoder is used in the digital electronics ?

 It is used to separate address bus and data bus
 To convert non coded information into coded form
 To convert coded information into non coded form
None of these

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

Base 16
Base 3
Base 8
Base 10

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Digital Electronics
In the toggle mode a JK flip-flop has

 J = 1, K = 1.
 J = 1, K = 0.
 J = 0, K = 0.
 J = 0, K = 1.

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

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