Virtualization enables a computer system to run multiple operating systems simultaneously and isolated from each other. x86 is the Instruction Set Architecture found in most PCs and Servers today, we will take a look at how x86 hardware is virtualized by applications like VMWare Workstation and QEMU. Virtualized Ubuntu 19 running via VMWare on Windows 10 Advantages of Virtualization Developers can have multiple virtual machines running various environments required for development and testing.