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Digital Electronics

Digital Electronics
Which of the following is 2’s complement of +12?

 00001000
 01110011
 00001100
 00000011

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Digital Electronics
An EPROM

All of these
 is of random-access type
 is programmable
 is non volatile

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

 X-OR
 NOR
 OR
 NAND

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Digital Electronics
Counter is a

  both.
  combinational circuit.
  none.
  sequential circuit.

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Digital Electronics
For a code to be self-complementing, the sum of all its weights must be

 10
 9
 12
 6

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Digital Electronics
The output of a logic gate is 0 when all its inputs are at logic 1. The gate is either

 a NAND or an AND
 a NAND or an X-OR
 a NOR or an X-NOR
 a NAND or an X-NOR

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