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Digital Electronics

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

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

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Digital Electronics
A binary number system is of base ________

 4
 10
 2
 1

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Digital Electronics
A device which converts 2421 code into 8421code is called a

 code decoder
 coder
 code encoder
 code converter

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Digital Electronics
In a read-only memory information can be stored

 in any of the above ways depending upon the type of memory
 by the user only once during its life time
 at the time of fabrication
 by the user a number of times

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Digital Electronics
What logic function is produced by adding an inverter to each input and output of an OR gate?

 AND
 X-OR
 NOR
 NAND

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Digital Electronics
A bubbled NAND gate is equivalent to a

 OR gate
 NOR gate
 NAND gate
 X-OR gate

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