Microprocessor
In a microcomputer , the address of memory locations are binary numbers that identify each memory circuit where a byte is stored. If a microcomputer uses 20-bit address, then numbers of different memory locations are

 20
 220 - 1
 220
 220-1

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Microprocessor
In 8085

P flag is reset when the result has odd parity
P flag is reset when the result has even parity
P flag is set when the result has odd parity
P flag is set when the result has even parity

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

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

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