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Digital Electronics

Digital Electronics
In the boolean algebra, a variable has ________ different state(s)/value(s).

 1
 3
 4
 2

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Digital Electronics
An X-OR gate gives a high output

 if it has even number of 0s
 if there are odd number of 1s
 for odd decimal value.
 if the decimal value of digital word is even

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Digital Electronics
Assuming 8 bits for data, 1 bit for parity, I start bit and 2 stop bits, the number of characters that 1200 BPS communication line can transmit is.

12 CPS
None of these
10 CPS
120 CPS

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Digital Electronics
The logic expression AB can be implemented by giving the inputs A and B to a two-input

 X-NOR gate
 NAND gate
 X-OR gate
 NOR gate

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Digital Electronics
Unit distance code is the other name of

 sequential code
 cyclic code
 XS-3 code
 self-complementing code

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Digital Electronics
To get an excess-3 code from BCD code

 0110 is added
 0110 is subtracted
 0011 is added
 0011 is subtracted

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