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Digital Electronics

Digital Electronics
A bubbled OR gate is equivalent to a

 NAND gate
 AND gate
 NOR gate
 X-OR gate

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

 00001100
 00000011
 00001000
 01110011

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Digital Electronics
How the digital signals is transmitted through a single conductor ?

 Serial
 Analog
None of these
 Parallel

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Digital Electronics
The maximum positive and negative numbers which can be represented in two’s complement form using n bits are respectively,

 +(2n-1-1),-2n-1
 +(2n-1-1),-(2n-1-1)
 +2n-1,-(2n-1+1)
 +2n-1,-2n-1

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Digital Electronics
For 4 bit parallel addition, we need ________ half adder(s) and ________ full adder(s)

 0 and 3
 0 and 4
 1 and 3
 1 and 4

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Digital Electronics
What is the minimum number of NOR gates required realizing an X-OR gating?

 4
 5
 3
 6

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