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Digital Electronics

Digital Electronics
What logic function is produced by adding an inverter to each input and output of an AND gate?

 X-OR
 NOR
 OR
 NAND

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Digital Electronics
A gate is enabled when its enable input is at logic 0. The gate is

 AND
 NOR
 none of these
 NAND

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Digital Electronics
In VLSI, the number of gate circuits per chip is

 > 10,000
 < 10,000
 10,000 to 99,999
 50,000 to 99,999

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Digital Electronics
Excess-3 code is known as

Algebraic code
Weighted code
Self-complementing code
Cyclic redundancy code

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Digital Electronics
An EPROM is

 volatile
 non erasable
 erasable but not programmable
 programmable and erasable

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Digital Electronics
Digital computers are more widely used as compared to analog computers, because they are

Less expensive
Always more accurate and faster
Useful over wider ranges of problem types
Easier to maintain

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