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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?

 OR
 X-OR
 NOR
 NAND

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Digital Electronics
In a read-only memory information can be stored

 by the user only once during its life time
 by the user a number of times
 at the time of fabrication
 in any of the above ways depending upon the type of memory

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Digital Electronics
2's Complement of 10101011 is

 10101011
 01010101
 00111100
 10101100

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Digital Electronics
The voltage levels for negative logic system

 must necessarily be 0 V and –5 V
 must necessarily be negative
 may be negative or positive
 must necessarily be positive

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Digital Electronics
NOT gates are to be added to the inputs of which gate to convert it to a NOR gate?

 OR
 AND
 NAND
 X-NOR

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Digital Electronics
Which one of the following is not a vectored interrupt?

 INTR.
 RST 7.5.
 RST 6.5.
 TRAP.

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MORE MCQ ON Digital Electronics

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