Operating System (OS)
The function(s) of file system is (are):

to provide for long and short term storage of files with appropriate economic tradeoffs.
to provide complete file naming freedom to the users and to permit controlled sharing of files
None of these
All of these
to provide security against loss of information due to system failure

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Operating System (OS)
The instruction register

is a hardware memory device which denotes the location of the current instruction being executed.
None of these
is a group of electrical circuits (hardware), that performs the intent of instructions fetched from memory.
contains a copy of the designated memory location specified by the MAR after a "read" or the new contents of the memory prior to a "write".
contains the address of the memory location that is to be read from or stored into.

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Operating System (OS)
A program

is the device where information is stored
is typically characterized by interactive processing and time of the CPU
None of these
is a device that performs a sequence of operations specified by instructions in memory.
is a sequence of instructions

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