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Digital Electronics

Digital Electronics
Simplified form of the function f = (x+y+xy)(x+z)

 y+xz
 x+y
 x+xyz
 x+yz

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Digital Electronics
In simplification of a Boolean function of n variables, a group of 2m adjacent 1s leads to a term with

 n – m literals
 m – 1 literals less than the total number of variables
 m + 1 literals less than the total number of variables
 n + m literals

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

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Digital Electronics
In SSI, the number of gate circuits per chip is

 < 6
 < 25
 < 20
 < 12

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Digital Electronics
The maximum positive and negative numbers that can be represented in one’s complement using n-bits are respectively

 +(2n-1-1),-(2n-1-1)
 None of these
 +2n-1,-(2n-1-1)
 +(2n-1-1),-2n-1

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Digital Electronics
1 kb represents

 10,000 bytes
 1024 bytes
 1000 bytes
 100 bytes

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