Microprocessor
The address bus of any microprocessor is always

 Unidirectional
 Bi-directional
 None
 Either unidirectional or bi-directional

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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 and also the PC will be incremented after the execution of the 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.

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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 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.
None of these

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