The macOS task manager, known as Activity Monitor, assists users in understanding how their Mac operates and handles applications and background tasks running. There are dedicated sections for CPU, Memory, Energy, Disk, and Network activities. These components can help in identifying which applications are using an abnormal amount of resources or hampering performance. For instance, if your Mac goes slow, you can open the Memory tab to learn which programs or applications have consumed the most RAM. You can also choose an unresponsive task in Activity Monitor and simply use the Stop button to quit the process.