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Digital Electronics

Digital Electronics
What is the Boolean expression for a two-input AND gate ?

 A - B
 A + B
 A & B
 A.B

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Digital Electronics
A demultiplexer is a

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

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Digital Electronics
Complement of XNOR and NOR is ________ and ________ respectively.

 NOR, XNOR
 XOR, NOR
 OR, NOR
 XOR, OR

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Digital Electronics
X + X.Y = ?

 1
 Y
 0
 X

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Digital Electronics
The output of a NAND gate is low

 only when all the inputs are high
 only when at least one input is low
 only when all the inputs are low
 only when at least one input is high

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Digital Electronics
A group of four bits is known as

 Byte
 Nibble
 Bit
 Word

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