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Digital Electronics

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

 00000011
 00001000
 00001100
 01110011

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

 Propagation
 Run-time
 Truth
 Operating

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Digital Electronics
The code used in digital systems to represent decimal digits, letters, and other special characters such as + , – , . , * , etc. is

 natural BCD
 octal
 hexadecimal
 ASCII

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Digital Electronics
A three-state buffer has the following output states

 High, Low, Float
 1, 0, float
 Set, Reset, Halt
 Both A and B

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Digital Electronics
The most suitable gate for comparing two bits is

 NAND
 X-OR
 AND
 OR

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Digital Electronics
Choose the option which is not a code conversion standard

 Excess-3 code
 Gray code
 BCD code
 Truth code

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