text: 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
  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