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Digital Electronics

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

 AND
 NOR
 OR
 NAND

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Digital Electronics
NAND. gates are preferred over others because these

have lower fabrication area
provide maximum density in a chip.
can be used to make any gate
consume least electronic power

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Digital Electronics
The time required for a gate to change its output is called as

 propagation time
 start time
 Decay time
 run time

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Digital Electronics
What are the values of R1 and R2 respectively in the expression (235)R1 = (565)10 = (1065)R2

 12, 8
 16, 8
 8, 16
 6, 16

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Digital Electronics
An 8 × 4 ROM contains a decoder of size

 3 × 8
 3 × 4
 8 × 4
 8 × 8

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Digital Electronics
In Boolean algebra A.A is equal to

 1
 A
 A²
 2A

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