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Digital Electronics

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

 3
 2
 4
 1

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

 cyclic code
 Hamming code
 Gray code
 XS-3 code

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Digital Electronics
A system has following negative numbers stored in binary form as shown. The wrongly stored number is

 -48 as 11101000
 -89 as 10100111
 -37 as 11011011
 -32 as 11100000

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Digital Electronics
The AND-OR realization of a combinational circuit requires three 3-input AND gates and one 3-input OR gate. This circuit can be designed using

 three 3-input OR gates and one 3-input AND gate
 four input NAND gates only
 three 3-input NAND gates and one 3-input NOR gate
None of these

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Digital Electronics
An 8-square eliminates

 3 variables
 4 variables
 8 variables
 2 variables

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Digital Electronics
2-out-of-5 code is

 weighted code
 self-complementing code
 alphanumeric code
 non-weighted code

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