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Digital Electronics

Digital Electronics
The following code is not a BCD code.

 all of these
 Gray code
 8421 code
 XS-3 code

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Digital Electronics
Simplified form of the function f = (x+y+xy)(x+z)

 x+y
 x+xyz
 x+yz
 y+xz

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Digital Electronics
When will be the output of an exclusive-OR gate is HIGH ?

 The inputs are different
 All inputs are HIGH
 All inputs are LOW
 The inputs are equal

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Digital Electronics
Which of the following is a self-complementing code?

 XS-3 code
 Hamming code
 cyclic code
 Gray code

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Digital Electronics
ASCII code is a

 10-bit code
 7-bit code
 8-bit code
 5-bit code

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Digital Electronics
Which of the following is 1’s complement representation of -34?

 01011101
 11011110
 11011101
 10100010

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