Microprocessor
Which general register or general register pair is incremented/decremented by 2 during PUSH and POP instructions?

 Stack Pointer.
 D-E.
 H-L.
 Program Counter.

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

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

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