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Digital Electronics

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

 RST 7.5.
 TRAP.
 RST 6.5.
 INTR.

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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

 00011111
 11100000
 011100001
 10101111

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Digital Electronics
A full adder has

 2 inputs, 2 outputs
 2 inputs, 1 output
 3 inputs, 2 outputs
 3 inputs, 1 output

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Digital Electronics
11001, 1001 and 111001 correspond to the 2’scomplement representation of the following set of numbers

 -25, -9 and -57 respectively
 -7, -7 and -7 respectively
 25, 9 and 57 respectively
 -6, -6 and -6 respectively

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Digital Electronics
The voltages corresponding to LOW and HIGH levels respectively are given below. Identify the voltages which correspond to negative logic system.

 5 V and 0 V
 0 V and 5 V
 1 V and 5 V
 –1.5 V and – 0.5 V

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Digital Electronics
The 2s complement of 17 is

  101111.
 101110.
 110001.
 111110.

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