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Digital Electronics

Digital Electronics
The momentary change in the output/state of the flip-flops is known as

 tri-state
 unstable state
 inverter
 trigger

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Digital Electronics
The NAND-NAND realization is equivalent to

 OR-AND realization
 AND-NOT realization
 AND-OR realization
 NOT-OR realization

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Digital Electronics
Odd parity of a bit stream can be tested using ________ gate.

 AND
 NOR
 OR
 XOR

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Digital Electronics
A computer has a word length of 8 bits (including sign). It is required to determine the range of integers that can be stored in the computer. If 2’s complement is used to represent the numbers, then the range will be

 -128 to 128
 -128 to 127
 -256 to 255
 -256 to 256

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Digital Electronics
The number of cells in a 6 variable K-map is

 64
 36
 12
 6

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Digital Electronics
What is the logic which controls a stair case light associated with two switches A and B located at the bottom and top of the stair case respectively?

 X-NOR
 X-OR
 AND
 OR

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