What Does Frames Per Second (FPS) Mean?
Frames per second (FPS) is a unit that measures display device performance in video captures and playback and video games. FPS is used to measure frame rate – the number of images consecutively displayed each second – and is a common metric used in video capture and playback when discussing video quality.
Techopedia Explains Frames Per Second (FPS)
Early silent films had frame rates between 16 to 24 FPS. The frame rate was highly variable because the cameras were hand-cranked. Filmmakers used this variability to their advantage and would slow or speed the frame rate to convey mood.