Microprocessor
The interrupt facility is provided in microprocessor to

 stop the microprocessor when desired
 keep a control on the working of the microprocessor
 stop the microprocessor when it starts malfunctioning
 change the sequence of the instructions being executed

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Microprocessor
When RET instruction is executed by any subroutine then

 the PC will be incremented after the execution of the instruction.
 without any operation, the calling program would resume from instruction immediately following the call instruction.
 the top of the stack will be popped out and assigned to the PC.
 without any operation, the calling program would resume from instruction immediately following the call instruction and also the PC will be incremented after the execution of the instruction.

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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.
 To provide proper WAIT states when the microprocessor is communicating with a slow peripheral device.
 To slow down a fast peripheral device so as to communicate at the microprocessor’s device.
None of these

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