Microprocessor
The address bus of any microprocessor is always

 Unidirectional
 Either unidirectional or bi-directional
 None
 Bi-directional

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Microprocessor
In 8085

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

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Microprocessor
Program counter in a digital computer

 Points the memory address of the next instruction to be fetched.
 Counts the numbers of programs run in the machine.
 Counts the number of times the loops are executed.
 Counts the number of times a subroutine is called.

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