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Digital Electronics

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

 XOR
 OR
 NOR
 AND

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Digital Electronics
A demultiplexer is a

 N-to-1 device
 1-to-N device
 N-to-N device
 1-to-1 device

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Digital Electronics
In an SR latch built from NOR gates, which condition is not allowed

 S=0, R=1
 S=1, R=1
 S=1, R=0
 S=0, R=0

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Digital Electronics
The output of a logic gate is 1 when all its inputs are at logic 0. The gate is either

 an X-OR or an X-NOR
 an AND or an X-NOR
 a NAND or a NOR
 an OR or a NAND

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

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Digital Electronics
The output of a logic gate is 1 when all its inputs are at logic 1. The gate is either

 an AND or an OR
 a NAND or a NOR
 an OR or an X-OR
 an AND or a NOR

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