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Digital Electronics

Digital Electronics
F’s complement of (2BFD)Hex is

 E304
 C403
 D403
 D402

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

 3
 2
 4
 1

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Digital Electronics
What is the Boolean expression for a two-input AND gate ?

 A - B
 A + B
 A.B
 A & B

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Digital Electronics
In which code do the successive code characters differ in only one position?

 8421 code
 Hamming code
 XS-3 code
 Gray code

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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
 4
 8

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Digital Electronics
When will be the output of an exclusive-OR gate is HIGH ?

 The inputs are different
 The inputs are equal
 All inputs are LOW
 All inputs are HIGH

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MORE MCQ ON Digital Electronics

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