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Digital Electronics

Digital Electronics
Which of these circuits will give yield carry with more delay 1. Carry look ahead adder 2. Ripple carry adder

 1.
 none
 2.
 both are same

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Digital Electronics
When will be the output of an AND gate is HIGH if there are three inputs, A, B, and C ?

 A = 1, B = 1, C = 0
 A = 1, B = 1, C = 1
 A = 0, B = 0, C = 0
 A = 1, B = 0, C = 1

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Digital Electronics
The inputs of a NAND gate are connected together. The resulting circuit is ___________.

NOT gate
OR gate
None of these
AND gate

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Digital Electronics
Which is typically the longest: bit,byte,nibble,word?

 bit
 nibble
 word
 byte

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Digital Electronics
AND-OR realization of a combinational circuit is equivalent to

 NOR-NAND realization
 NAND-NOR realization
 NOR-NOR realization
 NAND-NAND realization

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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

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

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