Operating System (OS)
Swapping

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

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Operating System (OS)
The Register - to - Register (RR) instructions

All of these
which perform indicated operations on two fast registers of the machine and leave the result in one of the registers.
have both their operands in the main store.
None of these
which perform an operation on a register operand and an operand which is located in the main store, generally leaving the result in the register, except in the case of store operation when it is also

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