Microprocessor
If the sign bit of mantissa is 0 and the exponent is increased from a positive to a more negative number the result is

A smaller floating point number
Either A or B depending on the actual number
A larger floating point number
A negative floating point number

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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.

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

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Microprocessor
Which one of the following is not correct?

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

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