Okay kiddo, so imagine if you wanted to play a game on a computer but the game needs a lot of space and power to work. But your computer doesn't have enough space or power to run the game. What can you do?
You can use a virtual application! It's like having another computer inside your computer that is more powerful and has more space. You can run the game on that other computer without having to worry about your own computer's limitations.
Basically, a virtual application is a program that runs on a virtual machine. A virtual machine is like a pretend computer that runs inside your real computer. The virtual machine has its own operating system (like Windows, Mac, or Linux), hardware (like a hard drive and processor), and resources (like memory and storage), but it is all virtual, which means it doesn't physically exist.
When you use a virtual application, you are running it on the virtual machine, not on your own computer. The virtual machine acts like a separate computer that you can control and interact with, but it's all happening inside your real computer.
Virtual applications are useful for a lot of things. They can help you run programs that your computer might not be able to handle on its own, or they can help you test programs without risking damage to your real computer. They're also used a lot in cloud computing, where many users share the same virtual machines to run their applications.
So there you go, kiddo! A virtual application is like having a pretend computer inside your real computer that you can use to run programs that might be too big or complex for your regular computer to handle.