What Does System Tray (Systray) Mean?
The system tray is a notification area on the operating system taskbar. It contains icons that provide users with easy access to system functions such as email, printer, network connections and volume control. The icons also indicate the statuses of the processes running on the computer. By hovering, double-clicking or right-clicking a notification icon, one is able to view the status of, access details about and control the associated application. The system tray is usually shared by all applications running on the computer.
Techopedia Explains System Tray (Systray)
The system tray is available in both desktop and mobile operating systems such as Windows, Linux, Mac OS, Android and iOS. The location of the tray depends on the operating system; it is at the bottom right corner in most Windows versions and is at the top right corner on Linux, Mac OS and Android. However, since it resides on the taskbar, the position can be changed by changing the position of the taskbar.