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Digital Electronics

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

 Telephone lines.
 Coaxial cables.
 Microwave systems.
  Modem.

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Digital Electronics
What logic function is produced by adding an inverter to each input and output of an OR gate?

 NOR
 AND
 NAND
 X-OR

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Digital Electronics
(11011) 2 in BCD 8421 code is

 01101100
 00100111
 00011011
 11011001

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Digital Electronics
In decimal number system what is MSD

 First digit from left to right
 Mean of all digits
 First digit from right to left
 Middle digit

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Digital Electronics
How many input and output required for demultiplexer ?

 one input and one output
 one input and many output
 number of selection inputs and one output
None of these

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Digital Electronics
At which the digital data can be applied to a a gate is known as ________ frequency.

 Truth
 Operating
 Run-time
 Propagation

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