From Wikipedia, the free encyclopedia
Jump to: navigation, search
A vacant holodeck on the Enterprise-D; the arch and exit are prominent.

The holodeck is a fictional plot device from the television series Star Trek. It is presented as a staging environment in which participants may engage with different virtual reality environments. From a storytelling point of view, it permits the introduction of a greater variety of locations and characters that might not otherwise be possible, such as events and persons in the Earth's past, and is often used as a way to pose philosophical questions.


The holodeck was inspired by inventor Gene Dolgoff, who owned a holography laboratory in New York City[1], and whom Star Trek creator Gene Roddenberry met in 1973.

The first appearance of a holodeck (then called a 'recreation room') in Star Trek came in the animated series (1974): during the episode "The Practical Joker", Dr McCoy, Sulu and Uhura are trapped inside it by the ship's computer. Within the fictional timeline of the Star Trek universe, the first human encounter with a holodeck comes with an encounter with the alien Xyrillian race in the Star Trek: Enterprise episode "Unexpected".


The holodeck is depicted as an enclosed room in which objects and people are simulated by a combination of matter, beams and fields onto which holographic images are projected, which appear solid to the touch. This matter is known as "holomatter", and usually disintegrates when the virtual-reality program is ended. However, examples from some episodes show holomatter persisting beyond the confines of the holodeck. In the episode "Encounter at Farpoint", for example, a character falls into a virtual water stream, but is shown to be wet even after exiting the holodeck.[2]

Holodeck programs are shown to fall into two broad types. The most commonly depicted type is a program in which the user of the holodeck is shown to be able to interact with the virtual-reality environment and its characters. The lesser-depicted type is a passive mode, in which the user is shown to be an 'unseen' observer in the simulated environment.

Characters in Star Trek are shown to use holodecks for recreation and for work. By simulating settings and events, undertakings in science, logistics and law may be carried out. A wide variety of settings and situations have been portrayed on the holodeck, including a 19th-century American West adventure, and the experiences of Captain Jean-Luc Picard playing the part of one of his boyhood heroes, detective Dixon Hill.

The holodeck is usually shown to be controlled by voice commands, though physical controls have also been shown. There have been several depicted incidents of Star Trek characters being trapped or injured by holodeck malfunctions,[3] leading to later series showing the addition of the safety feature of a hidden computer terminal which allows access to the holodeck controls.

Holodecks have also been used as a plot device to explore metaphysical questions. In one episode, a holodeck character is shown to become self-aware and considers his own identity and existence.[4] In another episode, a holodeck character achieves full sentience and is awarded the same rights as "living" crew members.

Star Trek shows characters known as 'holonovelists', who provide scenarios and stories for use on the holodeck. Some users are shown to develop a pathological addiction to the holodeck, a condition known to the characters as "holo-addiction". Star Trek: Voyager presents alien beings known as "photonic lifeforms" who interact with the ship's crew primarily through holodecks.

Similar technology in other works[edit]

  • Author Alexander Moszkowski may have been the first person to envisage something resembling a 'holodeck' concept.
  • The Nursery in The Veldt (1950) by Ray Bradbury
  • In 1965, computer scientist Ivan Sutherland imagined an artificial environment in which mere 'displays' might attain to solid reality.[5]
  • Russian science-fiction movie Moscow-Cassiopeia (1973) shows a "Surprise Room" which operates in a similar way to a holodeck.
  • Japanese TV series Space Battleship Yamato (1974) features a "resort room" capable of creating simulated environments.
  • The X-Men comic book series depicts a training room which was originally depicted as a mechanical affair, but later as using holograms and other sensory simulation.


  1. ^ "Meet The Man Behind The Holodeck, Part 1". Retrieved 2016-01-11. 
  2. ^ Phil Farrand. The Nitpicker's Guide for Next Generation Trekkers New York: Dell (1993)
  3. ^ Thomas Richards, The Meaning of Star Trek. New York: Doubleday (1997): 108–109. The Enterprise-D "has two mechanisms aboard that seem especially prone to failure ... the transporter and the holodeck."
  4. ^ Richards (1997): 114
  5. ^ Sutherland, I. (1965). The ultimate display. Proceedings of IFIP Congress 1965, 506–508.


  • P. Farrand, Nitpicker's Guide for Deep space Nine Trekkers New York: Dell (1996): 44–47
  • Lois H. Gresh & Robert Weinberg, Chapter 7, "The Holodeck" The Computers of Star Trek. New York: Basic Books (1999): 127–144
  • R. Sternbach & M. Okuda, Star Trek: The Next Generation Technical Manual New York: Bantam Books (1991)
  • Gene Dolgoff, "Reproduction of Transmitted, Pre-recorded, Holographic Television Signals in Color" New York: Institute of Electrical and Electronic Engineers (IEEE)(July, 1968)
  • Stoppe, Sebastian (2016). "Getting Immersed in Star Trek, Storytelling Between "True" and "False" on the Holodeck" (PDF). SFRA Review (316): 4–15. Retrieved July 20, 2016. 

External links[edit]


None of the audio/visual content is hosted on this site. All media is embedded from other sites such as GoogleVideo, Wikipedia, YouTube etc. Therefore, this site has no control over the copyright issues of the streaming media.

All issues concerning copyright violations should be aimed at the sites hosting the material. This site does not host any of the streaming media and the owner has not uploaded any of the material to the video hosting servers. Anyone can find the same content on Google Video or YouTube by themselves.

The owner of this site cannot know which documentaries are in public domain, which has been uploaded to e.g. YouTube by the owner and which has been uploaded without permission. The copyright owner must contact the source if he wants his material off the Internet completely.

Powered by YouTube
Wikipedia content is licensed under the GFDL and (CC) license