Microprocessor
PSW stands for

 flag byte
 accumulator and flag register contents
 accumulator contents
 none

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Microprocessor
When RET instruction is executed by any subroutine then

 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 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 8085 microprocessor system with memory mapped I/O, which of the following is true?

 Devices have 8-bit address line
 Devices are accessed using IN and OUT instructions
 There can be maximum of 256 input devices and 256 output devices
 Arithmetic and logic operations can be directly performed with the I/O data

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