Operating System (OS)
The function(s) of the Syntax phase is(are)

to parse the source program into the basic elements or tokens of the language.
None of these
to build a literal table and an identifier table
to build a uniform symbol table
to recognize the major constructs of the language and to call the appropriate action routines that will generate the intermediate form or matrix for these constructs.

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Operating System (OS)
The Memory Buffer Register (MBR)

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".
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.
contains the address of the memory location that is to be read from or stored into.

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