Like any other well-respected geek, I would love to have many computers all around me. However, money constraints make that hard, yet it’s still possible to have extra machines around… if they are virtual.

For those unfamiliar with the concept, virtualization is exactly what it sounds like: an entire computer is created in software, possibly with some help from the hardware. In practice, what this means is that you are able to have a “computer in a window,” as if it were any other program. The actual physical computer is called the host, and the virtual machine is called the guest. Note that virtualization is radically different from emulation; the former takes place when the host and the guest share their architecture (e.g. x86/amd64), the latter implies that they are different (e.g. a PowerPC host with an x86 guest.)

A very retro-futuristic word to describe the virtualization software on the host is hypervisor. Go figure.

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