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macOS, which is a Unix system, uses daemons. A daemon is a computer program that runs as a background process, rather than being under the direct control of an interactive user.

19 votes

What is "usernoted" and why is it eating my CPU?

Usernoted is a process that is responsible for notifications on OS X. The instructions from this post solved usernoted sitting at 100% CPU on my Mac, even though they were intended to only fix stuck …
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