Although ITS ceased to be used in the mid-1990s, use of the term continued to spread, partly because in Unix-style computer operating systems, "user" designates all unprivileged accounts, while the superuser, or root, is the special user account used for system administration. "root" is the conventional name of the user who has all rights or permissions (to all files and programs) in all modes (single- or multi-user). The usage lives on, however, and the term "luser" is often seen in program comments and on Usenet.