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Digital Electronics

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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Digital Electronics
The NOR gate is OR gate followed by ___________.

None of these
NOT gate
NAND gate
AND gate

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Digital Electronics
In which of the following base systems is 123 not a valid number?

Base 10
Base 8
Base 3
Base 16

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Digital Electronics
Which of the logical operations is represented by the + sign in Boolean algebra ?

 OR
 NOT
 NAND
 AND

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Digital Electronics
1’s complement of 17 is

 10111.
 11100.
  01110.
 10001.

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Digital Electronics
The number of 1 in 8-bit representation of 127 in 2’s complement form is m and that in 1,s complement form is n. What is the value of m:n?

 1:2
 2:1
 2:3
 1:1

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