Operating System (OS)
A linker

is not needed with a good compiler
must be run after the loader
is not necessary with variable partitions
None of these
creates a load module

ANSWER DOWNLOAD EXAMIANS APP

Operating System (OS)
The Memory Address Register

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

ANSWER DOWNLOAD EXAMIANS APP

Operating System (OS)
Addressing structure

None of these
defines the fundamental method of determining effective operand addresses
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.
All of these

ANSWER DOWNLOAD EXAMIANS APP

Operating System (OS)
System maintenance:

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

ANSWER DOWNLOAD EXAMIANS APP