Chartered Manager refers to a professional certification in management: C.Mgr., offered by the CIM Chartered Managers Canada; CMgr, offered by the Chartered Management Institute, U.K.
The DPI control is a physical switch on the top, bottom or side of your mouse. Press or slide the switch to adjust your mouse's sensitivity. Your mouse's LCD then displays the DPI setting, or you see a message on the monitor informing you of the DPI change.
The three main mouse device types are: 1  Mechanical: Built with a trackball underneath the mouse and mechanical sensors, allowing easy movement in all directions. 2  Optomechanical: Similar to the mechanical type but uses optical, rather than mechanical, sensors to detect trackball movement.  Optical: The most expensive.