I mean it is crazy! I can log into a operating system (Windows Server 2016 DS) right in the window of my web browser! Even though my PC does not support virtualization technology (CPU has no support for VT-x or AMD-v), cannot run VM (e.g. VirtualBox), but I can use Chrome web browser to run Windows VM and execute EXE programs right on the cloud!

Why is this possible?  Anything to do with web browser front-end rendering technology?