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

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

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Microprocessor
How can we make any bit of a register “1”?

 AND that bit with “1” and remaining bits with “0”.
 OR that bit with “1” and remaining bits with “0”.
 OR that bit with “0” and remaining bits with “1”.
 AND that bit with “0” and remaining bits with “1”.

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