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Digital Electronics

Digital Electronics
Which one of the following is not a vectored interrupt?

 TRAP.
 RST 7.5.
 RST 6.5.
 INTR.

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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
The implicants which will definitely occur in the final expression are called

 prime implicants
 selective prime implicants
 essential prime implicants
 redundent prime implicants

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Digital Electronics
2's Complement of 10101011 is

 10101100
 10101011
 00111100
 01010101

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Digital Electronics
What logic function is produced by adding an inverter to each input and output of an OR gate?

 X-OR
 NAND
 AND
 NOR

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Digital Electronics
X + X.Y = ?

 0
 X
 Y
 1

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