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Digital Electronics

Digital Electronics
A three-state buffer has the following output states

 1, 0, float
 High, Low, Float
 Set, Reset, Halt
 Both A and B

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Digital Electronics
The inputs of a NAND gate are connected together. The resulting circuit is ___________.

OR gate
NOT gate
None of these
AND gate

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Digital Electronics
Which of these sets of logic gates are designated as universal gates?

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

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Digital Electronics
Which circuit is used in between two systems having two different codes

 Conversion
 Both A and B
 Combinational
 Sequential

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Digital Electronics
The most suitable gate for comparing two bits is

 AND
 OR
 NAND
 X-OR

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Digital Electronics
The devices commonly used for making digital circuits are

 semiconductor devices
 relays
 mechanical switches
 contact switches

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