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Digital Electronics

Digital Electronics
The boolean algebra is mostly based on

 De Morgans theorem
 De Morpans theorem
 Standard theorem
 Boolean theorem

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Digital Electronics
The output of a logic gate is 0 when all its inputs are at logic 0. The gate is either

 an AND or a NOR
 a NAND or an X-OR
 an OR or an X-OR
 an OR or an X-NOR

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Digital Electronics
The number A = 01110000 and B = 10101111 are in 2’s complement form .Addition of above two number is

 011100001
 11100000
 10101111
 00011111

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

 11000100
 01111100
 10111100
 00111100

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Digital Electronics
AND operation is equivalant to

 Division
 Intersection
 Both B and C
 Union

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Digital Electronics
A self-complementing code for the decimal digits is created using the weight 4 4 3 -2. The value of 8592 in the code is

 1100 1001 1111 1000
 1100 1011 1111 1001
 1100 0111 1111 0011
 1000 0101 1001 0010

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