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Digital Electronics

Digital Electronics
OR operation is equivalant to

 Intersection
 Union
 Both B and C
 Division

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Digital Electronics
What is the radix of octal number system ?

 8
 2
 16
 10

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Digital Electronics
A 16-square eliminates

 8 variables
 3 variables
 4 variables
 2 variables

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Digital Electronics
In which of the following base systems is 123 not a valid number?

Base 3
Base 10
Base 16
Base 8

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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

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

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Digital Electronics
The NAND gate can function as a NOT gate if

 one input is set to 0
 one input is set to 1
 all inputs are connected together
 inputs are left open

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