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Digital Electronics

Digital Electronics
Which of the following is not a transmission medium?

 Coaxial cables.
 Telephone lines.
 Microwave systems.
  Modem.

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Digital Electronics
What is the 2’s complement of 10110000?

 10001110
 01001111
 01010000
 10110000

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Digital Electronics
An 8 × 4 ROM contains a decoder of size

 3 × 8
 8 × 4
 8 × 8
 3 × 4

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Digital Electronics
The minimum decimal equivalent of the number 11C is

 194
 183
 269
 268

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Digital Electronics
The main equation for a D flip flop is

 Q=0
 Q=D
 Q=1
 Q=D'

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Digital Electronics
A bubbled NOR gate is equivalent to a

 NAND gate
 AND gate
 NOR gate
 X-OR gate

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