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Digital Electronics

Digital Electronics
Which one of the following is 2’s complement of -68?

 10111100
 01111100
 00111100
 11000100

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Digital Electronics
Digital circuit can be made by the repeated use of ___________

NAND gates
NOT gates
OR gates
None of these

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Digital Electronics
The largest positive number that can be stored in a computer that has 16-bit word length and uses two’s complement arithmetic is

 32,767
 65,536
 32,768
 32

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Digital Electronics
The NAND gate can function as a NOT gate if

 all inputs are connected together
 one input is set to 0
 one input is set to 1
 inputs are left open

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Digital Electronics
Complement of NOR and OR gate is ________ and ________ respectively.

 AND, NAND
 NAND, AND
 OR, NOR
 NOR, OR

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Digital Electronics
OR operation is equivalant to

 Division
 Both B and C
 Union
 Intersection

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