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Digital Electronics

Digital Electronics
The main equation for a D flip flop is

 Q=D'
 Q=D
 Q=0
 Q=1

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Digital Electronics
The logic expression A + B can be implemented by giving inputs A and B to a two-input

 NAND gate
 NOR gate
 X-NOR gate
 X-OR gate

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

  Modem.
 Telephone lines.
 Microwave systems.
 Coaxial cables.

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Digital Electronics
Which one of the following is not a vectored interrupt?

 RST 7.5.
 RST 6.5.
 INTR.
 TRAP.

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Digital Electronics
The binary code of (21.125)10 is

10101.01
10100.111
10100.001
10101.001

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Digital Electronics
In a read-only memory information can be stored

 by the user a number of times
 at the time of fabrication
 by the user only once during its life time
 in any of the above ways depending upon the type of memory

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MORE MCQ ON Digital Electronics

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