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Digital Electronics

Digital Electronics
2's Complement of 10101011 is

 00111100
 10101100
 10101011
 01010101

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Digital Electronics
Fastest memory element is

 Cache
 Hard Drive
 RAM
 ROM

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Digital Electronics
A single flip-flop can be cleared (reset) to

 None
 0
 1
 Both A and B

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

 cyclic code
 2421 code
 binary code
 8421 code

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Digital Electronics
A computer has a word length of 8 bits (including sign). It is required to determine the range of integers that can be stored in the computer. If 2’s complement is used to represent the numbers, then the range will be

 -128 to 128
 -128 to 127
 -256 to 256
 -256 to 255

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Digital Electronics
A three-state buffer has the following output states

 Both A and B
 1, 0, float
 Set, Reset, Halt
 High, Low, Float

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MORE MCQ ON Digital Electronics

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