A task list may refer to any of the following:
Tasklist is a Windows command line command that displays a list of the processes that are running
A task list is a menu that appears in Microsoft Windows 3.1 when users press the Ctrl+Esc key that provides a list of open applications. In new versions of Windows, it has been replaced by the Task Manager. However, in versions of Windows 95 and later the keyboard shortcut opens the Start menu.
Operating system terms, Task