Editing Holotank

{{Status|Canon}}
[[File:Holotank.jpg|thumb|Holotank displaying [[Cortana]].]]
The '''holotank''', also referred to as a '''holo-projector''', is a device used to project a [[Holography|hologram]]. Small holotanks commonly used by [[AI]]s are often referred to as '''holo-pedestals''', while table-sized ones are known as '''holotables'''.<ref>'''[[Halo Wars 2]]''', campaign level ''[[The Signal]]''</ref>

==UNSC==
Most [[UNSC]] ships and facilities are equipped with holotanks to display information such as tactical readouts, holographic communiques, or mission recordings.<ref>'''[[Halo: The Fall of Reach]]''', ''page 221''</ref> UNSC holotanks vary greatly in size and shape, ranging from small cylindrical pedestals reserved for [[Artificial intelligence|AI]] [[avatar]]s to large tables used to display tactical information on the [[bridge]] of a warship, for example.

==Covenant==
The Covenant commonly use holotanks on their starships,{{Ref/Novel|Id=CH|CH|Chapter=3|Page=56}} and they are plentiful in ''[[High Charity]]'' as well. [[Artificial intelligence|AIs]] can also access the map data from the holotank's link to the Covenant information network and give directions verbally to anyone near the holotank. During the [[Fall of High Charity]], [[Cortana]] entered one to aid [[John-117]]'s passage through the city, remaining there long after the space station was transformed into a [[Flood hive]]. The Covenant also utilize portable holo-pedestals to communicate over distance or in the battlefield. The [[Luminary|Luminaries]] mounted on Covenant ships are typically linked to the bridge's holotank, which can display the information detected by the Luminary.{{Ref/Reuse|CH}}

==Gallery==
<gallery>
File:Holo.jpg|Cortana displayed on the ''[[UNSC Pillar of Autumn|Pillar of Autumn]]''<nowiki>'</nowiki>s holotank in ''[[Halo: Combat Evolved]]''.
File:H2-HC_Holotank.jpg|A Covenant holotank in [[High Charity]] displaying [[Cortana]]'s [[avatar]] in ''[[Halo 2]]''.
File:H2-CairoFiringControlHolotank.jpg|A holotank in [[Cairo Station (station)|Cairo Station]]'s [[Firing Control]].
File:H2-Covenant portable holo-pedestal.jpg|A hologram of the Prophet of Regret on Delta Halo.
File:Covenant Projector 2.jpg|A portable Covenant holo-pedestal displaying a hologram of the [[Prophet of Truth]] in ''[[Halo 3]]''.
File:H3_TheStorm_TruthHologram.png|A hologram of the Prophet of Truth giving a sermon.
File:H3_Covenant_HoloPedestal.jpg|An offline Covenant holo-pedestal.
File:Broadcast2.jpg|The Prophet of Truth gives a sermon to Covenant troops.
File:Dome o' Light.png|The ''[[UNSC Spirit of Fire|Spirit of Fire]]''<nowiki>'</nowiki>s holotank displaying the Covenant shield on [[Arcadia]] in ''[[Halo Wars]]''.
File:Shieldogram.png|''Spirit of Fire''<nowiki>'</nowiki>s holotank displaying a diagram of [[Trove]].
File:H3ODST PreparetoDropCinematic.jpg|A large UNSC holographic table aboard the {{UNSCShip|Say My Name}} in ''[[Halo 3: ODST]]''.
File:Noble Briefing.png|[[Carter-A259]] using another type of holographic display during a mission briefing in ''[[Halo: Reach]]''.
File:Reach Hologram.png|''[[Ardent Prayer]]''<nowiki>'</nowiki>s holotank displaying the planet [[Reach]].
File:Tributeroom_Holotank.jpg|A holotank in [[Tribute Room|Dr. Halsey's lab]] underneath [[SWORD Base]].
File:Commissioning-3.jpg|[[Andrew Del Rio]] looking at a holotank displaying a schematic of the {{UNSCShip|Infinity}} in ''[[The Commissioning]]''.
File:FUD-Cortana.jpg|Cortana rising above her holotank in ''[[Halo 4: Forward Unto Dawn]]''.
File:H4FUD-CryoBay-CortanaSphere.jpg|Cortana's holo-sphere in the cryo-bay of the ''Forward Unto Dawn''.
File:H4-Render-Cortana-Plinth-Holotank.jpg|Render of Cortana's holotank plinth in the ''Forward Unto Dawn'' in ''[[Halo 4]]''.
File:H4SO_Holomap_Concept.jpg|''[[Spartan Ops]]'' concept art for a Covenant holographic map projector.
File:UNSC TACSIM.png|[[Roland]] on a holotank in ''[[Halo: Spartan Assault]]''.
File:H2A-pavel-belov-holo-generator.jpg|''Halo 2: Anniversary'' concept art of a Covenant holotank.
File:H2A-John&Cortana.jpg|A holotank in ''[[Halo 2: Anniversary]]''.
File:HSS HolotankConcept.jpg|Art of a holotank in ''[[Halo: Spartan Strike]]''.
File:H5G-HoloDisk.png|A disk-shaped holotank levitating inside a [[D79-TC Pelican]] in ''[[Halo 5: Guardians]]''.
File:HW2-HoloMap.jpg|A holotank aboard the ''Spirit of Fire'' in ''[[Halo Wars 2]]''.
File:HINF BanishedHologramConcept.png|Concept art of a [[Banished]] holotank in ''[[Halo Infinite]]''.
File:HINF Concept GbraakonWeaponStudy.jpg|Concept art of two Banished holotanks being used to study various weapons.
File:HINF LaunchSiteHolotankConcept1.jpg|Concept art of a UNSC holotank on [[Launch Site]].
File:HINF Concept ForerunnerHoloPlinth.jpg|Concept art of a Forerunner holotank plinth.
File:HINF SinoVietHolotank.png|A holotank utilized by the [[New Mombasa Police Department]].
</gallery>
{{Linkbox|gallery=yes|gallerypage=Images of hologram technology}}

==List of appearances==
{{col-begin}}
{{col-2}}
*''[[Halo: The Fall of Reach]]'' {{1st}}
*''[[Halo: Combat Evolved]]''
*''[[Halo: The Flood]]''
*''[[Halo: First Strike]]''
*''[[Halo 2]]''
*''[[Halo: Ghosts of Onyx]]''
*''[[Halo 3]]''
*''[[Halo: Contact Harvest]]''
*''[[Halo: The Cole Protocol]]''
*''[[Halo Wars]]''
*''[[Halo 3: ODST]]''
*''[[Halo Legends]]''
*''[[Halo: Reach]]''
*''[[Halo: Fall of Reach]]''
**''[[Halo: Fall of Reach - Boot Camp|Boot Camp]]''
**''[[Halo: Fall of Reach - Covenant|Covenant]]''
**''[[Halo: Fall of Reach - Invasion|Invasion]]''
*''[[Halo: Combat Evolved Anniversary]]''
*''[[Halo 4: Forward Unto Dawn]]''
{{col-2}}
*''[[Halo 4]]''
**''[[Spartan Ops]]''
*''[[Halo: Initiation]]''
*''[[Halo: Escalation]]''
*''[[Halo 2: Anniversary]]''
*''[[Halo: Spartan Strike]]''
*''[[Halo 5: Guardians]]''
*''[[Halo: Shadow of Intent]]''
*''[[Halo Wars 2]]''
*''[[Halo: Tales from Slipspace]]''
**''[[Something has Happened]]''
**''[[Fireteam Majestic Poker Night]]''
**''[[Knight takes Bishop]]''
*''[[Halo: Envoy]]''
*''[[Halo: Rise of Atriox]]''
*''[[Halo: Point of Light]]''
*''[[Halo Infinite]]''
{{col-end}}

==Sources==
{{Ref/Sources}}

[[Category:Hologram technology]]