Operating System (OS)
Which of the following is not essential to shut down your computer?

Cut off the power supply
Close all running applications
Save all opened files
Switch off monitor

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Operating System (OS)
Addressing structure

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

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