Operating System (OS)
Addressing structure

None 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.
performs indicated operations on two fast registers of the machine and leave the result in one of the registers.
All of these

ANSWER DOWNLOAD EXAMIANS APP

Operating System (OS)
The main function of the dispatcher (the portion of the process scheduler) is

suspending some of the processes when the CPU load is high
swapping a process to the disk
bring processes from the disk to the main memory
assigning ready process to the CPU
None of these

ANSWER DOWNLOAD EXAMIANS APP