I remember seeing this for the first time when I did a short exchange month in Japan. A friend of my host family asked me to fix their PC and install a printer,

I remember seeing this for the first time when I did a short exchange month in Japan. A friend of my host family asked me to fix their PC and install a printer, and when I saw yen signs all over the operating system I first thought he accidentally caught a bad virus. Took me a while of banging my head against why "\" (as in C:\) is not working to realize that yen = \. Still had no idea why this was actually the case