Operating System (OS)
Which of the following is a phase of a compilation process

Lexical analysis
Both of the above
None of these
Static analysis
Code generation

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Operating System (OS)
The Memory Address Register

contains the address of the memory location that is to be read from or stored into.
is a group of electrical circuits (hardware), that performs the intent of instructions fetched from memory.
is a hardware memory device which denotes the location of the current instruction being executed.
None of these
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".

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Operating System (OS)
System maintenance:

is necessary on all systems, regardless of how good
is usually not necessary
is not required if the system is well written
always requires several programs
None of these

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