Microprocessor
The correct sequence of steps in the instruction cycle of a basic computer is

 Fetch, Read effective address, Decode and Execute.
 Fetch, Execute, Decode and Read effective address.
 Read effective address, Decode, Fetch and Execute.
 Fetch, Decode, Read effective address and, Execute.

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

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

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