Pipe

1. When referring to computer memory, a pipe is a temporary section of computer memory capable of linking two or more computer processors, increasing the overall efficiency of the computer.
2. Also known as a vertical bar, the pipe is a computer keyboard key ( | ) that is two vertical lines above one another and commonly looks like a full vertical line. This symbol is commonly found on the same United States qwerty keyboard key as the back slash key.
3. In programming, the double pipe "||" is used to represent an OR Boolean statement. 

• An additional listing of computer keyboard keys can be found by clicking here.

Also see: Keyboard definitions, Memory definitions, Plumbing, Programming definitions