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Digital Electronics

Digital Electronics
The output of a gate is LOW when at least one of its inputs is HIGH. This is true for

 NAND
 NOR
 OR
 AND

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Digital Electronics
16’s complement of BABA is?

 4546
 4544
 4445
 4446

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Digital Electronics
Which of the following codes is known as the 8421 code?

 ASCII code
 Gray code
 XS-3 code
 BCD code

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Digital Electronics
How many input and output required for demultiplexer ?

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

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Digital Electronics
The decimal equivalent of the highest possible address for an 8-bit address bus is

 256
 255
 8
 128

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Digital Electronics
The Quine– McClusky method of minimization of a logic expression is a (i) graphical method (ii) algebraic method (iii) tabular method (iv) a computer-oriented algorithm The correct answers are

 (ii) and (iv)
 (i) and (iii)
 (iii) and (iv)
 (i) and (ii)

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