Notes – First C++ Program using Turbo C++ and VS Code

Let’s understand how to write, save, compile, and run your first C++ program using both Turbo C++ (traditional IDE) and Visual Studio Code (modern IDE).

1. Writing First Program in Turbo C++

Turbo C++ is a DOS-based IDE that many schools and colleges still use.

Steps to Run:

1. Open Turbo C++.
2. Go to File > New to create a new file.
3. Type your C++ program.
4. Save the file with .cpp extension.
5. Press Ctrl + F9 to compile and run the program.
6. Press Alt + F5 to view the output.

Sample Code:

#include <iostream.h>
#include <conio.h>

void main() {
    clrscr();  // clear screen
    cout << "Welcome to C++ Programming!";
    getch();   // wait for key press
}

Turbo C++ uses old-style headers like <iostream.h> and functions like clrscr() and getch() which are not part of modern C++.

---

2. Writing First Program in VS Code

Visual Studio Code is a modern editor. You need to set up a C++ compiler (like MinGW) before using it.

Setup Required:

• Install VS Code
• Install C++ Extension by Microsoft
• Install MinGW or g++ compiler
• Add the compiler path to your system environment variables

Steps to Run:

1. Create a folder and open it in VS Code.
2. Create a new file with .cpp extension.
3. Write the program.
4. Open Terminal in VS Code.
5. Compile the code using: bashCopyEditg++ filename.cpp -o output
6. Run the output using: bashCopyEdit./output

Sample Code (Modern C++):

#include <iostream>
using namespace std;

int main() {
    cout << "Welcome to C++ Programming!" << endl;
    return 0;
}

---

Turbo C++ vs VS Code (Quick Comparison)

Feature	Turbo C++	VS Code (with g++)
Header Files	Uses old style	Uses modern C++ headers
Editor Style	DOS-based	Modern GUI
Compatibility	Outdated	Up-to-date
Usage in Industry	Very Rare	Widely used
Recommended for	Beginners (legacy)	Beginners to advanced