Operating System (OS)
Addressing structure

All of these
defines the fundamental method of determining effective operand addresses
are variations in the use of fundamental addressing structures, or some associated actions which are related to addressing.
None of these
performs indicated operations on two fast registers of the machine and leave the result in one of the registers.

ANSWER DOWNLOAD EXAMIANS APP

Operating System (OS)
Swapping

allows each program in turn to use the memory
does not work with overlaying
works best with many small partitions
None of these
allows many programs to use memory simultaneously

ANSWER DOWNLOAD EXAMIANS APP