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Digital Electronics

Digital Electronics
Which of the following is known as a mod-2 adder?

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

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Digital Electronics
Which of the following gate is a two-level logic gate

NOT gate
NAND gate
EXCLUSIVE OR gate
OR gate

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Digital Electronics
What logic function is produced by adding inverters to the inputs of an OR gate?

 NAND
 X-NOR
 NOR
 AND

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Digital Electronics
8421 code is

 weighted code
 self-complementing code
 non-weighted code
 alphanumeric code

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Digital Electronics
A device which converts BCD into octal is called

 code converter
 decoder
 demultiplexer
 encoder

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Digital Electronics
The set of which logic gates is designated as universal gate?

 XNOR, NOR, NAND.
 NOT, OR , AND.
 XNOR, NOR, NAND.
  NOR , NAND.

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