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Digital Electronics

Digital Electronics
How many bits are required to store one BCD digit ?

 3
 4
 1
 2

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Digital Electronics
Which is the correct order of sequence for representing the input values in K-map?

(00, 01, 10, 11)
(00, 10, 01, 11)
(00, 01, 11, 10)
(00, 10, 11, 01)

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

 3 × 4
 8 × 8
 8 × 4
 3 × 8

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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
11001, 1001 and 111001 correspond to the 2’scomplement representation of the following set of numbers

 -25, -9 and -57 respectively
 -6, -6 and -6 respectively
 25, 9 and 57 respectively
 -7, -7 and -7 respectively

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Digital Electronics
In which of the following codes do the successive characters differ in only 1-bit position?

 8421 code
 binary code
 cyclic code
 2421 code

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