I know this isn't news, and probably many of you already know this. However, I was recently surprised to discover that some deeply geeky friends of mine didn't

I know this isn't news, and probably many of you already know this. However, I was recently surprised to discover that some deeply geeky friends of mine didn't know how virtual memory worked, so I pulled this out to explain it. If only all technical documentation were half as accurate and half as engaging.