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Digital Electronics

Digital Electronics
Truth table is used to express

 Boolean map
 Boolean expression
 Boolean matrix
 Boolean addition

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Digital Electronics
Consider the following multiplication: (10w1z) × (15)10 = (y01011001)2 Which one of the following gives appropriate values of w,y and z?

 w = 0,y = 1,z = 1
 w = 1,y = 1,z = 1
 w = 1,y = 1,z = 0
 w = 0,y = 0,z = 1

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Digital Electronics
Which one of the following is 2’s complement of -68?

 00111100
 10111100
 01111100
 11000100

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Digital Electronics
A device which converts 2421 code into 8421code is called a

 code converter
 code decoder
 code encoder
 coder

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

 x+xyz
 x+y
 y+xz
 x+yz

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Digital Electronics
The minimum decimal equivalent of the number 11C is

 194
 268
 183
 269

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