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Digital Electronics

Digital Electronics
In which of the following base systems is 123 not a valid number?

Base 3
Base 10
Base 8
Base 16

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Digital Electronics
The data bus width of a ROM of size 2048 × 8 bits is

 10
 12
 16
 8

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Digital Electronics
When two n-bit binary numbers are added then the sum will contain at most

 (n + n)-bit
 n-bit
 (n + 1)-bit
 (n + 2)-bit

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Digital Electronics
A 16-square eliminates

 4 variables
 8 variables
 3 variables
 2 variables

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Digital Electronics
The output of a gate is LOW when at least one of its inputs is HIGH. This is true for

 NAND
 OR
 AND
 NOR

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Digital Electronics
AND operation of (79)10 & (-56)10 is

 50H
 42H
 08H
 48H

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