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A holodeck on the Enterprise-D; the arch and exit are prominent.
A holodeck on the Enterprise-D; the arch and exit are prominent. The USS Enterprise (NCC-1701-D (or Enterprise -D, to distinguish it from prior starships with the same name) is a 24th century Starship An arch is a structure that spans a space while supporting weight (e

A holodeck is a simulated reality facility located on starships and starbases in the fictional Star Trek universe. Simulated reality is the proposition that Reality could be simulated—perhaps by Computer simulation —to a degree indistinguishable from "true" Reality A starship is a theoretical Spacecraft designed for traveling between the stars, as opposed to a vehicle designed for Orbital spaceflight or Interplanetary A starbase is a facility often in space used in Science fiction works such as Star Trek, Babylon 5, and Firefly. A fictional universe is a self-consistent fictional setting with unique background elements such as an imaginary history or geography and possibly fantasy or science The holodeck was first seen in the pilot episode of Star Trek: The Next Generation, "Encounter at Farpoint". Star Trek The Next Generation ( STTNG or TNG) is an Emmy and Peabody Award-winning science fiction television program created by Gene Roddenberry " Encounter at Farpoint " is the first episode of Star Trek The Next Generation. An episode of Star Trek: The Animated Series, "The Practical Joker", anticipated the idea in the 1970s by portraying a recreation room capable of holographic simulations. Star Trek The Animated Series (also known as The Animated Adventures of Gene Roddenberry 's Star Trek) is an Emmy Award winning "The Practical Joker" is an episode of Star Trek The Animated Series. This article is about the Decade 1970-1979 For the Year 1970 see 1970. The concept of a holodeck was first shown to humans through an encounter with the Xyrillan race in the Star Trek: Enterprise episode "Unexpected". Star Trek Enterprise (simply titled Enterprise prior to season three is a Science fiction Television program created by Brannon Unexpected is the fourth episode (production #105 of the Television series Star Trek Enterprise.

Contents

Features

The holodeck is depicted as an enclosed room in which objects and people are simulated by a combination of replicated matter, tractor beams, and shaped force fields onto which holographic images are projected. In the fictional Star Trek Universe, a replicator is a Machine capable of creating (and recycling objects Matter is commonly defined as being anything that has mass and that takes up space. A tractor beam is a hypothetical device with the ability to attract one object to another from a distance In Science fiction and Fantasy literature a force field or protective shield is a barrier made up of energy to protect a person area or object from Holography (from the Greek, ὅλος - hólos whole + γραφή - grafē writing drawing is a technique that allows the Sounds and smells are simulated by speakers and fragranced fluid atomizers, respectively. Sound' is Vibration transmitted through a Solid, Liquid, or Gas; particularly sound means those vibrations composed of Frequencies In Atomic spectroscopy, atomization stands for the conversion of a vaporized sample into atomic components The feel of a large environment is simulated by suspending the participants on force fields which move with their feet, keeping them from reaching the walls of the room (a virtual treadmill). A treadmill is a piece of indoor sporting equipment used to allow for the motions of Running or Walking while staying in one place Perspective is retained through use of sound damping fields and graviton lenses, which make objects, people, and sounds appear to be more distant. In Physics, the graviton is a hypothetical Elementary particle, a Boson to be exact that mediates the force of Gravity in the framework The effect is an ultra-realistic simulation of an environment, with which the user can interact.

Most holodeck programs shown in the episodes run in first person "subjective mode", in which the user actively interacts with the program and its characters. The user may also employ third-person "objective mode", in which he or she is "apart" from the actual running of the program and does not interact with it (all of the program's characters will ignore the user as if they were not there—this was shown in the Enterprise episode "These Are the Voyages..."). " These Are The Voyages " is the 98th and final episode of the UPN television series Star Trek Enterprise. The user may then take more time to observe the trappings of the program, and even have conversations with other users, without interrupting the flow of the program itself.

Matter created on the holodeck ("holomatter") requires the holoemitters to remain stable and will quickly disintegrate if it is removed from the holodeck without a mobile emitter to sustain it (although this principle has been overlooked in some episodes). The Emergency Medical Hologram, better known as The Doctor, is a fictional character on the television series Star Trek Voyager. According to the Starfleet Survival Manual, holomatter within the holodeck can be disrupted using an inverse photonic pulse from a phaser, leaving real matter unharmed, as was demonstrated in Star Trek: Insurrection. The Star Trek Fictional universe contains a very large number of weapons. Star Trek Insurrection is a 1998 Science fiction feature film the ninth based on the Star Trek television series

User controls for a holodeck are typically located near its door (inside and out); on the inside an arch surrounds the exit and can be revealed by a user to start, modify, or stop a simulation (as shown on the Enterprise-D in TNG). An arch is a structure that spans a space while supporting weight (e The holodeck also responds to a limited range of voice commands. The holodeck includes safety protocols to protect the users. While it does not entirely shield users from minor injury (such as strained muscles or dislocated joints), it has protocols designed to prevent more serious injuries and fatalities, even when the simulation appears to present real jeopardy. Muscle (from Latin musculus, diminutive of mus "mouse" is contractile tissue of the body and is derived from the A joint is the location at which two or more Bones make contact The safety mechanism can, however, be disabled by a simple command to the computer, or as a result of malfunction.

Holodecks appear to be vulnerable when damage occurs to the computer controlling the holodeck. A computer is a Machine that manipulates data according to a list of instructions. Malfunctions have at times resulted in the safety protocols being inadvertently disabled. Some malfunctions have also been known to trap users inside the holodeck.

Applications

Starfleet personnel use holodecks for both recreation and training. They are used to recreate or simulate settings and events for analysis, such as to explore the forensics and logistics of a crime scene for law enforcement purposes, or for scientific experimentation. Logistics is the management of the flow of Goods, Information and other resources including Energy and people between the point of origin and the point The Emergency Medical Hologram on ships such as USS Voyager applies holodeck technology to present a single "character" within the otherwise natural environment of the ship's sickbay. In the Star Trek Fictional universe, the Emergency Medical Hologram or EMH (full name EMH Program AK-1 Diagnostic and Surgical Subroutine The fictional ''Intrepid''-class Starship USS Voyager is the primary setting of the Science fiction Television series Sick bay is a nautical term for the compartment in a Ship used for medical purposes

An example of the holodeck's recreational functions would be the holosuites that are owned and rented out – often for sexual purposes – by Quark on Deep Space Nine. Generally speaking human sexuality is how people experience and express themselves as sexual beings Quark, son of Keldar and Ishka, is a Fictional character in the television series Star Trek Deep Space Nine, played by Armin Shimerman The Space station Deep Space Nine ( DS9) is the main setting of the Science fiction Television series Star Trek Deep Space Nine

Writing stories and plotlines for the holodeck is an activity pursued by people known as holonovelists. It was the chosen profession of Lt. Tom Paris of the USS Voyager, and he pursued it when the ship finally returned from the Delta Quadrant in the show's finale. Thomas Eugene Paris, played by Robert Duncan McNeill, is a character in the television series " Star Trek Voyager " The fictional ''Intrepid''-class Starship USS Voyager is the primary setting of the Science fiction Television series In the television series Star Trek and its spin-offs Galactic quadrant refers to an area of the Milky Way Galaxy (although it's apparently no longer called

Notable appearances of the holodeck

The first episode featuring a holodeck was "The Practical Joker", a non-canon animated episode in which it was called a "recreation room". "The Practical Joker" is an episode of Star Trek The Animated Series. The Star Trek canon is usually defined as comprising the television series ''Star Trek'', Star Trek The Next Generation, Star Trek Deep Space Due to interference with the ship's computers, several crew members were trapped in it.

There were several incidents of crew being trapped or injured by holodeck malfunctions in later episodes. One resulted in the shooting of the ship's historian on board Enterprise. The USS Enterprise (NCC-1701-D (or Enterprise -D, to distinguish it from prior starships with the same name) is a 24th century Starship In the episode "A Fistful of Datas", Lt. " A Fistful of Datas " is an episode of Star Trek The Next Generation, and was first aired on 1992-11-9 Worf, his son Alexander, and Counselor Troi were trapped in an 19th century American West adventure with the safety protocols disabled when a computer experiment involving Lt. Worf, played by Michael Dorn, is a Main character in both Star Trek The Next Generation and Star Trek Deep Space Nine Alexander Rozhenko is a character in Star Trek The Next Generation and Star Trek Deep Space Nine. Deanna Troi (di'ænæ is a main character in the science-fiction TV series Star Trek The Next Generation and related TV series and films The 19th century of the Common Era began on January 1, 1801 and ended on December 31, 1900, according to the Gregorian calendar Cmdr. Data went awry. Lieutenant Commander Data, played by actor Brent Spiner, is a character in the Star Trek Fictional universe. Worf received a minor gunshot wound when the computer began remaking all the characters as replicas of Data. However he was able to safely play out the story, and once the story ended the trio was able to leave the holodeck.

The disabling of a holodeck's safety protocols was used as a tactical advantage in Star Trek: First Contact, when under attack from the Borg, Jean-Luc Picard disables the security protocols and grabs a holographic tommy gun, shooting and killing several Borg drones. Star Trek First Contact is a 1996 Science fiction film and the eighth feature film based in the ''Star Trek'' fictional universe The Borg are a fictional pseudo- race of Cyborgs depicted in the Star Trek franchise Jean-Luc Picard is a Star Trek character primarily portrayed by Patrick Stewart. The Thompson submachine gun is an American Submachine gun that became infamous during the Prohibition era

The holodeck was used as a plot device to explore metaphysical questions, such as "Elementary, Dear Data" and "Ship in a Bottle", in which a holodeck character becomes self-aware and contemplates the nature of his identity and continued existence. A plot device is an element introduced into a story solely to advance or resolve the plot of the story Metaphysics is the branch of Philosophy investigating principles of reality transcending those of any particular science " Elementary Dear Data " is the third episode of the second season of Star Trek The Next Generation. " Ship in a Bottle " is the 138th episode of the Television series Star Trek The Next Generation.

Similar technology in other works

See also

References

External links

Memory Alpha (often abbreviated to MA) is a Wiki that is an encyclopedic reference for topics related to the Star Trek fictional universe A wiki is a page or collection of Web pages designed to enable anyone who accesses it to contribute or modify content using a simplified Markup language.
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