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Digital Electronics

Digital Electronics
How many NOR gates are required to obtain AND operation?

 3
 1
 2
 4

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Digital Electronics
A three-state buffer has the following output states

 1, 0, float
 Both A and B
 Set, Reset, Halt
 High, Low, Float

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Digital Electronics
The XS-3 code is a

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

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Digital Electronics
11001, 1001 and 111001 correspond to the 2’scomplement representation of the following set of numbers

 -25, -9 and -57 respectively
 -6, -6 and -6 respectively
 -7, -7 and -7 respectively
 25, 9 and 57 respectively

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

 Pin14
 Pin1
 Pin2
 Pin13

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Digital Electronics
In the boolean algebra, a variable has ________ different state(s)/value(s).

 3
 2
 1
 4

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