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Good day, everyone.

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Basically in this course, we will be covering some basic to advanced concepts in C++ programming.

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Even if you have a previous exposure in programming, if you have not, then also this course is designed

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in such a way to help you learn programming from scratch in an easy and efficient way.

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So C++ is a popular, object oriented programming language which will help you to kick start your programming

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life.

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So without any wait, let, let's start the course.

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So first of all, we are going to discuss what its programming and what is in need of programming in

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our day-to-day life.

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Computers has become a very essential part without a computer.

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We cannot leave, right?

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So most of our actions and everything is now carried out with the help of instruments like computers.

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So what do we need to do some tasks with the help of a computer?

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How can we make the computer do something?

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So that's where we use programming.

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Programming is the process of creating a set of instructions that tell a computer how to perform a task.

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Now what about program?

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So these terms are very essential while you start basic understanding of programming.

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The collection of instructions, which we'll create to make computer perform a task are part program.

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Now we are using several programming languages to create such programs.

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So three basic concepts we are actually discussing in this light.

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First of all, what is programming programming?

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We will be creating a set of instructions to tell the computer how to perform a task.

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Those instructions are collection by scholarship program and programming languages are utilized for

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creating these kind of programs.

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Now, let's see what are the key challenges which programmers had when they had to create good software.

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So software in the sense it's a program itself, or it's a collection of multiple programs that helps

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to do a particular task in a computer.

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So these were the key challenges that the initial programmers had while they wanted to create this good

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software.

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They were confused to create and good examples or how they could represent real world entities.

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That was something confusing for them, like if they wanted to create the hospital management system,

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how they can create a good hospital management system by mapping all active participants, or that people

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in the hospital.

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It can be the hospital itself.

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It can be the employees in the hospital.

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It can be doctors.

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It can be patients.

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So these are the real world entities who were the part of this particular project.

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And these people initially were confused how they may be able to represent these real world entities.

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The next challenge they had was how to promote the usability.

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So they were confused to create programs in such a way that these programs can be reused in other programs.

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Suppose even if they are creating something for their hospital management system, if the same program

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can be utilized or reused anywhere else supporting another program for I don't to a management system

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that will be called, I say, the use of program.

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So these users that are the programmers are confused how to promote the reusability of the program.

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No.

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The third challenge they had was to develop components that tolerated changes.

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So when we talk about programming, each and every program will be updated as the time passes.

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Suppose if you see an app in place, don't you download it for the first time in your mobile phone and

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some days later, it will improve its features?

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And you knew and you will have data for similarly like updating that application or code based on the

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changes they need to make in that particular program or in a way to improve that program.

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We need to update it several times, so that kind of changes.

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Also, users or the programmers were concerned how to increase the change ability of the components

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they use in the program.

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That was also one challenge which they have faced.

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Then they wanted to improve the quality of software projects.

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That also was a key challenge.

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And they also wanted to industrialize the software development process.

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So software development is nothing like a normal process.

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It's not like building it or like using raw materials and building a product from a factory.

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It's not like that.

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It's kind of different.

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So there should be a way to industrialize and make the real software development more popular.

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And this was another key challenge which programmers want to address at that time.

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So if we talk about the evolution of programming the technology, so we talked about what is programming

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now, this programming had different kind of methodologies which were actually offered in the initial

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types.

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The most popular methodology at the initial times of programming languages was procedural programming,

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and another was called functional programming.

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And the third one, or the recent popular one, is the object oriented programming, and we can follow

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two types of approach while doing the programming.

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One is top down approach and more depth approach.

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So when we talk about this programming methodology, let's go one by one.