Operating System (OS)
The operating system allows the user to organize the computer's contents in a hierarchical structure of directories that include all of the following except:

System
Files
Drives
Folders

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Operating System (OS)
Addressing modes

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

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Operating System (OS)
Which of the following is not true about documentation?

Documentation gives better understanding of the problem
Documentation, of a system, should be as clear and direct as possible
None of these
All of these
Documentation increases the maintenance time and cost

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