Task manager

System monitor program

For the task manager included in Microsoft Windows, see Task Manager (Windows).

Not to be confused with Task management software.

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KDE System Guard, a task manager for KDE Plasma 5

In operating systems, a task manager is a system monitor program used to provide information about the processes and applications running on a computer, as well as the general status of the computer. Some implementations can also be used to terminate processes and applications, as well as change the processes' scheduling priority. In some environments, users can access a task manager with the Control-Alt-Delete keyboard shortcut.

Task managers can display running services. (processes) as well as those that were stopped. They can display information about the services, including their process identifier and group identifier.

Common task managers

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Activity Monitor, included in macOS
Conky, for the X Window System
htop, for the Unix shell
Plasma System Monitor, included in KDE Plasma Desktop
nmon, for Linux and AIX
ps, for the Unix shell
Task Manager, included in Windows
tasklist, for DOS
TaskManager, included in MorphOS
top, for the Unix shell
Browser Task Manager in Chromium-based browser such as Google Chrome and Microsoft Edge, which displays CPU and memory usage of tabs