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Digital Electronics

Digital Electronics
1 Gigabyte is equal to

 1024 bytes
 1024 Mbytes
 1024 bits
 1024 kbytes

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Digital Electronics
The output of a logic gate is 0 when all its inputs are at logic 1. The gate is either

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

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Digital Electronics
When will be the output of an AND gate is HIGH if there are three inputs, A, B, and C ?

 A = 0, B = 0, C = 0
 A = 1, B = 1, C = 0
 A = 1, B = 0, C = 1
 A = 1, B = 1, C = 1

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Digital Electronics
The universal gate is ___________

NAND gate
AND gate
OR gate
None of these

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Digital Electronics
In simplification of a Boolean function of n variables, a group of 2m adjacent 1s leads to a term with

 n – m literals
 m – 1 literals less than the total number of variables
 n + m literals
 m + 1 literals less than the total number of variables

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Digital Electronics
The voltages corresponding to LOW and HIGH levels respectively are given below. Identify the voltages which correspond to negative logic system.

 5 V and 0 V
 1 V and 5 V
 –1.5 V and – 0.5 V
 0 V and 5 V

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