title: Delay line
text: # Delay line
  
  Delay line may refer to:
  
  * Propagation delay, the length of time taken for something to reach its destination
  * Analog delay line, used to delay a signal
  * Bi-directional delay line, a numerical analysis technique used in computer simulation for solving ordinary differential equations by converting them to hyperbolic equations
  * Digital delay line, a sequential logic element
  * Delay-line memory, a form of computer memory used on some of the earliest digital computers
  * Detcord delay line loops
  