the role of an os or operating system is the program that executes everything and makes the computer usable hope this helps
She needs to use animations to enhance her presentation
Answer:
I hope this answer is correct
Explanation:
Internal registers include the instruction register (IR), memory buffer register (MBR), memory data register (MDR), and memory address register (MAR). The instruction register fetches instructions from the program counter (PC) and holds each instruction as it is executed by the processor.
Answer:
D
Explanation:
pecialisation - departments focus on one area of work. productivity - specialism means that staff are skilled in the tasks they do. accountability - there are clear lines of management. clarity - employees understand their own and others' roles.
Answer:
c. Using public member functions to access and manipulate the data members
Explanation:
In object oriented programming, abstraction is used in order to lessen the complexity and hiding non essential details about how a program is actually working in the background. In order to achieve abstraction, classes are defined in such a way that the data members are hidden and the member functions form public interface. The public member functions here are used to access and manipulate these hidden or private data members. So the use of public member functions shows the abstraction here. These members functions are public so they can be directly accessed and the hidden or private data members can be accessed indirectly with the help of these member functions. So internal details of the classes and its data members are hidden from the outside world. Thus abstraction used here ensures security of data members of two classes and protects them from any accidental alterations by other parts of program.
