What does application virtualization do?

Application virtualization is a technology that allows applications to run in a virtual environment, separating them from the underlying operating system. This means that the application is abstracted from the OS, so it can operate independently and does not need to be installed in the traditional way on the machine. This is beneficial because it can lead to reduced conflicts between applications, easier management of software deployments, and the ability to run applications in different environments without needing to change the operating system setup.

By abstracting the application layer, virtualization facilitates the use of applications across different devices and systems while ensuring that the applications function as intended. This isolation means that the application can be run with its dependencies included, thus avoiding compatibility issues that often arise when software interacts directly with the operating system.

The other options represent misunderstandings about the nature of application virtualization. For instance, while it does not eliminate the need for software updates but can streamline their deployment, it does not suggest that applications run without any operating system or lead to an increase in the operating system's size. Instead, it maintains a modular approach, enhancing flexibility and management rather than complicating the system environment.