What is Activity Monitor on Mac and how do you use it?
Activity Monitor shows you every app and process running on your Mac and how much CPU, memory, and energy each one is using. Open it from Applications → Utilities → Activity Monitor whenever your Mac feels slow.
Activity Monitor is a tool built into macOS that shows you what programs are running on your Mac and how much power they're using. It tracks memory, CPU, disk space, network speed, and energy. If your Mac is slow or a program is frozen, Activity Monitor tells you which app is the problem so you can close it.
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