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Digital Electronics

Digital Electronics
Which of these circuits will give yield carry with more delay 1. Carry look ahead adder 2. Ripple carry adder

 none
 both are same
 2.
 1.

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Digital Electronics
It is desired to have a 64 × 8 ROM. The ROMs available are of 16 × 4 size. The number of ROMs required will be

 2
 6
 8
 4

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

 6, 16
 8, 16
 12, 8
 16, 8

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Digital Electronics
The decimal equivalent of the highest possible address for an 8-bit address bus is

 255
 256
 8
 128

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Digital Electronics
A Binary number system has how many digits.

 1
 10
 0
 2

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Digital Electronics
In decimal number system what is MSD

 Mean of all digits
 First digit from right to left
 Middle digit
 First digit from left to right

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