Operating System (OS)
An incremental backup

saves only files that have recently changed
uses more tapes
should be done each month
None of these
saves all files

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Operating System (OS)
The Memory Address Register

None of these
contains the address of the memory location that is to be read from or stored into.
is a hardware memory device which denotes the location of the current instruction being executed.
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".

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Operating System (OS)
Which of the following is true for machine language.

Depicting flow of data in a system
the language which communicates with the computer using only the binary digits 1 and 0.
A sequence of instructions which, when followed properly, solves a problem
Repeated execution of program segments
None of these

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

to build a literal table and an identifier table
to build a uniform symbol table
to parse the source program into the basic elements or tokens of the language.
None of these
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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