Microprocessor
Assertion(A): Segment override prefix (SOP) is used when a default offset register is not used with its default base segment register but with a different base register. Reason(R): The offset registers IP and SP can never be associated with any other segment registers apart from their respective default segments.

 Both A & R are true but R is not the correct explanation of A.
 A is true but R is false.
 A is false but R is true.
 Both A & R are true and R is the correct explanation of A.

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Microprocessor
Which one of the following is not correct?

 Bus is a group of wires
 Bootstrap is a technique or device for loading first instruction
 An instruction is a set of bits that defines a computer operation
 An interrupt signal is required at the start of every program

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