Most operating systems, namely Windows and OS X, have a well known set of alert, error and message sounds that have become synonymous with the product…. especially the Windows XP Start-up sound on computers with their volume up to loud >_<
Some users take the time to remix these sounds. As the sounds in the mixes are heard from computers on a daily basis, the song has an odd sense of familiarity, while maintaining quite a unique and catchy tune. Below is a compilation of some good remixes people have posted on YouTube.