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 false but R is true.
 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 true but R is false.

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Microprocessor
IN an intel 8085A microprocessor, why is READY signal used?

 To indicate to user that the microprocessor is working and is ready for use.
None of these
 To slow down a fast peripheral device so as to communicate at the microprocessor’s device.
 To provide proper WAIT states when the microprocessor is communicating with a slow peripheral device.

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Microprocessor
A high on RESET OUT signifies that

 processing can begin when this signal goes high
 all the registers of the CPU are being reset
 all the registers and counters are being reset
 all the registers and counters are being reset and this signal can be used to reset external support chip

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