Orient yourself to the weatherboards you'll be working with: the board you're replacing, the board immediately above it and the one immediately below it. Call the board above the one you're replacing board A.. Board B is the board that you're replacing.
Desktop virtualization is the concept of separating the logical desktop from the physical machine. One form of desktop virtualization, virtual desktop infrastructure (VDI), can be thought of as a more advanced form of hardware virtualization.
Virtualization software does just that by creating and managing one or more virtual machines on a single, physical host PC. Every virtual machine is a fully functioning virtual computer, where you can install a guest operating system of your choice, with network configuration, and a full suite of PC software.