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

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

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Digital Electronics
A demultiplexer is a

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

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Digital Electronics
What is the minimum number of two-input NAND gates used to perform the function of 2-input OR gate?

 two
 four
 three
 one

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Digital Electronics
The code used in digital systems to represent decimal digits, letters, and other special characters such as + , – , . , * , etc. is

 hexadecimal
 octal
 ASCII
 natural BCD

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Digital Electronics
Which of the following gates is known as anticoincidence detector?

 OR gate
 AND gate
 X-OR gate
 X-NOR gate

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