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Digital Electronics

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

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

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Digital Electronics
Complement of NOR and OR gate is ________ and ________ respectively.

 NAND, AND
 OR, NOR
 AND, NAND
 NOR, OR

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Digital Electronics
Which of these sets of logic gates are designated as universal gates?

 OR, NOT, AND.
 NOR, NAND.
 XOR, NOR, NAND.
 NOR, NAND, XNOR.

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Digital Electronics
LSI means

 Large Symbol Invertor
 Large Scale Invertor
 Large Symbol Integration
 Large Scale Integration

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Digital Electronics
What is the minimum number of two-input NAND gates used to perform the function of 2-input OR gate?

 three
 four
 two
 one

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Digital Electronics
The output of a logic gate is 0 when all its inputs are at logic 0. The gate is either

 an AND or a NOR
 an OR or an X-NOR
 a NAND or an X-OR
 an OR or an X-OR

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