Operating System (OS)
Addressing modes

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

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Operating System (OS)
File record length

depends upon the size of the file
should always be fixed
should be chosen to match the data characteristics
Should always be variable
None of these

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