Teaching. Usually, if you have a lab doing operating system classes or security. You usually need to setup virtual environment for small activities like showing

Teaching. Usually, if you have a lab doing operating system classes or security. You usually need to setup virtual environment for small activities like showing how a Unix environment behave even if you get rid of half of the binaries. Here, you just need to restart the web browser to restart the Linux to its initial state. Compared to VirtualBox or VMware, you don't really need anything on the client PC beside a recent web browser.