Microprocessor
The content of the A15-A8 (higher order address lines) while executing “IN 8-bit port address” instruction are

 same as the content of A7-A0
 irrelevant
 all bits reset (i.e. 00H)
 all bits set (i.e. FFH)

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Microprocessor
Assertion (A): Negative values of incremental operator in DO loop are allowed in Fortran 77 but not in earlier versions of Fortran. Reason (R): Fortran 77 has better array facilities than earlier versions of Fortran.

A is correct R is wrong
Both A and R are correct and R is correct explanation of A
A is wrong R is correct
Both A and R are correct but R is not correct explanation of A

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