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Raspberry Pi runs on Linux, which is a scary OS for the majority of computer users (including me) who are unfamiliar with it. For me, the biggest challenge was installing the driver for my USB wi-fi dongle, which is not supported by Raspbian out-of-the-box. It took me a weekend of googling and hours of trial and error to finally get it working. (There were numerous times when I almost threw the dongle out of the window because of frustration.) Therefore, I am writing this post for my future reference. Perhaps it might also benefit any other readers are having trouble setting up their wi-fi dongle.