Operating System (OS)
Operating system

provides a layered, user-friendly interface
All of these
enables the programmer to draw a flowchart
None of these
links a program with the subroutines it references

ANSWER DOWNLOAD EXAMIANS APP

Operating System (OS)
Addressing structure

defines the fundamental method of determining effective operand addresses
All of these
are variations in the use of fundamental addressing structures, or some associated actions which are related to addressing.
performs indicated operations on two fast registers of the machine and leave the result in one of the registers.
None of these

ANSWER DOWNLOAD EXAMIANS APP