When reading the module, I wondered if there were more than just the two types of hypervisors. I started checking online and read that there are type 3 hypervisors. According to an article by Keith Ward on Virtualization Review, Phoenix is making a hypervisor embedded in a system's BIOS. So, it runs alongside your installed OS. So that means type 1 gets installed directly onto the physical hardware, type 2 gets installed over the OS installed on the physical hardware, and type 3 lives between both. Since type 3 lives at the BIOS level, the virtualized applications should run nearly instantly on computer start-ups. Something else was pretty cool about having a type 3 hypervisor. The article mentions that if anything ever happens to your system and it is stuck on the blue screen of death, you could still access things such as email or even the internet through your browser if it was installed onto the type 3 hypervisor.
Ward, K. (2008, March 12). A new hypervisor hits the scene. Virtualization Review. https://virtualizationreview.com/blogs/mental-ward/2008/03/a-new-hypervisor-hits-the-scene.aspx
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