T minus zero means out of time.. This comes from a countdown convention used in by both the American military and NASA. Generally, it is used when counting down to a major event that will happen at a specific time. Mathematically, T is time, minus whatever amount of time is left until the event happens. If the News Years ball is dropping in 10 minutes, one could say The ball is dropping in T minus 10 minutes and counting!.
mouse, computer mouse (noun). a hand-operated electronic device that controls the coordinates of a cursor on your computer screen as you move it around on a pad; on the bottom of the device is a ball that rolls on the surface of the pad. see more on Definitions.net Â». hand-operated electronic device that controls the coordinates of a cursor on your computer screen as you move it around on a pad; on the bottom of the device is a ball that rolls on the surface of the pad.
In computing, a pointer or mouse cursor (as part of a personal computer WIMP style of interaction) is a graphical image on the computer monitor or other display device. The pointer echoes movements of the pointing device, commonly a mouse, touchpad, or stylus pen, signals the point where actions of the user take place. It can be used to select and move other graphical user interface elements, and is distinct from the cursor, which responds to keyboard input.