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Digital Electronics

Digital Electronics
AND operation of (79)10 & (-56)10 is

 50H
 48H
 42H
 08H

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Digital Electronics
When will be the output of an OR gate is LOW ?

 When any input is HIGH
 When any input is LOW
 When all input is LOW
 When all inputs are HIGH

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Digital Electronics
Which of the following is a digital device

 Regulator of a fan
 Microphone
 Resistance of a material
 Light switch

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Digital Electronics
Fastest memory element is

 Hard Drive
 Cache
 RAM
 ROM

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

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Digital Electronics
The number of digit 1 present in the binary representation of (3 × 512 + 7 × 64 + 5 × 8 + 3) is

 6
 8
 9
 7

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