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Digital Electronics

Digital Electronics
EBCDIC code is a

 5-bit code
 7-bit code
 10-bit code
 8-bit code

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Digital Electronics
Which of the logical operations is represented by the + sign in Boolean algebra ?

 NAND
 AND
 NOT
 OR

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

 NAND
 AND
 X-OR
 NOR

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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

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

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Digital Electronics
A binary number system is of base ________

 2
 4
 10
 1

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Digital Electronics
The momentary change in the output/state of the flip-flops is known as

 unstable state
 tri-state
 trigger
 inverter

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