tomahowk
de·mon (noun) A subordinate deity, as the genius of one's attendant spirit.
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In Greek mythology, daemons handled tasks that the gods couldn't be bothered with. Likewise, computer daemons handle tasks in the background that the user isn't bothered with.
In computer multitasking operating systems, a daemon is a computer program running in the background, rather than being under the direct control of a user, usually initiated a process. Unix daemons usually have names ending with the letter "d" (i.e. syslogd is the daemon handling the system log). Systems often launch daemons at boot time. They respond to network requests, hardware activity, or other programs by performing a task. Daemons can also configure hardware (i.e. devfsd on some Linux systems) or run scheduled tasks (i.e. cron). In Unix, a daemon is any background process. Unix users may spell daemon as demon, and usually pronounce the word that way. In Microsoft DOS, these programs are Terminate and Stay Resident (TSR) software. On Microsoft Windows systems, programs called services perform the daemon function. On the original Mac OS system, these programs are extensions. Mac OS X, being a Unix system, has daemons. |