QBASIC

Introduction to QBASIC

QBASIC is a programming language that was developed by Microsoft in the 1980s. It is a simple, yet powerful language that is easy to learn and use, making it a great choice for beginners who are just starting to learn programming.

Getting Started with QBASIC

To start using QBASIC, you will need to install it on your computer. You can download QBASIC for free from the internet, or you may already have it installed on your computer if you are using an older version of Windows.

Once you have QBASIC installed, you can open it by going to the Start menu and selecting "All Programs," then "QBASIC." When QBASIC opens, you will see a blank screen where you can type in your code.

Writing Your First QBASIC Program

To write your first QBASIC program, type in the following code:

PRINT "Hello, World!"

This code will print the phrase "Hello, World!" to the screen when you run it.

To run your program, click on the "Run" button in the toolbar or press the F5 key on your keyboard. Your program should run, and the phrase "Hello, World!" should be displayed on the screen.

Exercise: Creating a Simple Calculator

Now that you know the basics of QBASIC, try creating a simple calculator program. To do this, follow these steps:

    Open QBASIC and create a new program.
    Type in the following code:

INPUT "Enter a number: ", num1
INPUT "Enter another number: ", num2
sum = num1 + num2
PRINT "The sum of the two numbers is:"; sum

    Run the program by clicking on the "Run" button or pressing F5.
    When the program prompts you to enter a number, type in a number and press Enter.
    When the program prompts you to enter another number, type in a second number and press Enter.
    The program should then display the sum of the two numbers that you entered.

Congratulations! You have just written your first QBASIC program. With a little practice, you will be able to write more complex programs and explore the full power of QBASIC.