Microprocessor
The stack pointer

 resides in RAM
 resides in microprocessor
 resides in ROM
 may be in RAM or ROM

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Microprocessor
A good assembly language programmer should use general purpose registers rather than memory in maximum possible ways for data processing. This is because:

 Of limited set of instructions for data processing with memory
 Data processing with registers is easier than with memory
 Data processing with memory requires more instructions in the program than that with registers
 Data processing with registers takes fewer cycles than that with memory

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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.

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

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