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Digital Electronics

Digital Electronics
Which of the following is 1’s complement representation of +57

 01000110
 11000110
 00000001
 00111001

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

 AND
 X-OR
 NAND
 NOR

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Digital Electronics
A bubbled OR gate is equivalent to a

 NAND gate
 NOR gate
 X-OR gate
 AND gate

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Digital Electronics
When will be the output of a NOT gate is HIGH ?

 the input is HIGH
 the input is HIGH and LOW
 the input is LOW
None of these

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Digital Electronics
The devices commonly used for making digital circuits are

 mechanical switches
 relays
 contact switches
 semiconductor devices

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Digital Electronics
Which GATE IS CALLED INEQUALITY COMPARATOR?

 4. NOT
 1. NOR
 2. AND
 3. XOR

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