A teleprompter, also known as autocue, (in reference to cue cards, or note cards) – A Teleprompter is a display device that prompts the person speaking with an electronic visual text.
Because the speaker can look straight at the lens while reading the script, the teleprompter creates the illusion that the speaker has memorized the speech or is speaking spontaneously, looking directly into the camera lens – at the audience.
Notes or cue cards, on the other hand, require the presenter to look at them instead of at the lens, which leaves an impression of distraction.