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C++ program to add two distances object using oop object as argument concept.

The Below C++ program illustrates the use of objects as function arguments. It performs the addition of time in the hour and minutes format.

Since the member function sum() is invoked by the object T3, with the objects T1 and T2 as arguments, it can directly access the hours and minutes variables of T3, but the members of T1 and T2 can be accessed only by using dot operators like T1.hours and T1.minutes. Therefore inside the function sum() the variables hours and minutes refer to T3, T1.hours and T1.minutes refer to T1 and T2.hours and T2.minutes refer to T2.

What is an Operating System?

A program that acts as an intermediary between a user of a computer and the computer hardware.

A program that controls the execution of application programs.

Kernel — the one program running at all times (all else being application programs).

Resource allocator — manages and allocates resources.

An interface between applications and hardware.

Main objectives of an OS:


Make the computer system convenient to use.


An OS allows the computer system resources to be used in an efficient manner

Ability to evolve:

An OS should be constructed in such a way as to permit the effective development, testing, and introduction of new system…

C++ program using OOP to write a program to create a shopping list. Implement operations like displaying the list, remove items from the shopping list and print the total value of the list.


C and C++ programmer.

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