It’s very difficult to know where to begin with this word. It is both an old word and a new word. Perhaps the most recent phenomena of a haunt or haunting came with a Police song/album called ‘Ghost in the Machine’. In my experience this would refer to an extremely fast and mostly empty CPU (central processing unit) cycle where perhaps only less than 1% of the available processing power is used. Sometimes under these circumstances, although for 99% of the time the CPU usage is 1% or idle, every now and then a much larger percentage can be detected using modern tools. Perhaps for a split second, a significant percentage ( above 40%) would be used, although there would be no apparent reason for this.
Alternatively, say you were watching a film one day. Most of the time it is possible to explain how it was made and to understand the camera angles. Every once in a while, there can be no explanation. This once in a while can apply to, say one or two shots in a film, or sometimes it can apply to a whole film. Not only can these shots defy logic (i.e.) there is no use of heads. Sometimes there is no fixed perspective and it is still difficult to comprehend even an eye of any kind doing the visuals for us. Of-course a more traditional understanding of a haunt relates the sound of the wind or the whistling of the wind. Sometimes even produced music can cause a haunting sensation. In both cases an independent visual acuity is still implied and perhaps the illusion of consciousness is prolonged for the viewer. Yet another type of ghost or ghosting occurs when the frame rate of a normal T. V. ( 50 Hz or 60 Hz ) interferes with the frame rate of the media, be it film 24 frames per second, NTSC 29.97 frames per second or any other modern codec standard. What actually happens is that the TV decodes the pictures according to an algorithm which is related to the combined frame rate which sometimes means a particular frame can stick for two frames or
a frame can be skipped. Normally these artifacts cannot be detected by the viewer.