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Digital Electronics

Digital Electronics
OR operation is equivalant to

 Intersection
 Both B and C
 Division
 Union

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

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Digital Electronics
Which one of the following even parity codes are in errors. (I)100110010 (II)011101010 (III)10111111010001010

 Both (I)&(III)
 Both (II)&(III)
 Only (II)
 Only (III)

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

 > 50,000
 50,000 to 99,999
 1,00,000 to 10,00,000
 > 1,00,000

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Digital Electronics
A bubbled AND gate is equivalent to a

 X-OR gate
 NAND gate
 NOR gate
 OR gate

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Digital Electronics
The Quine– McClusky method of minimization of a logic expression is a (i) graphical method (ii) algebraic method (iii) tabular method (iv) a computer-oriented algorithm The correct answers are

 (iii) and (iv)
 (ii) and (iv)
 (i) and (ii)
 (i) and (iii)

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