Activity Monitor
Activity Monitor displays information about all the processes running on your Mac, including CPU, disk, memory, and network usage. You can see exactly how your computer’s resources are being used via a searchable table, helpful graphs, or even directly in the Dock icon. You can view the processes organized in different groupings, quickly search for processes, and quit processes. Activity Monitor also makes it easy to see how your memory is being used and how much memory is available, as well as disk activity and data transferred over the network.
