note

To clear up some of the UNIX-heads out there, no, it's not the CD player program. That one's KSCD. Admittingly, tho, the X in the title throws Unix-heads off because many Unix programs start with the letter X to indicate that it requires an XWindows server (i.e. XOrg or XFree86), and the actual CD player program is not only also four letters long, but also has the letters K, C and D in it. However, given how Randall regularly refers to Linux and open-source in the comics, it could be intentional.