Datastream

Cylons accessing the datastream

The datastream is the name for a Cylon central computer network.

A datastream is first seen in a Cylon facility on occupied New Caprica, where the Colonial launch keys are held. Sharon Agathon uses her Cylon abilities to access the datastream to grant her access to the key's storage area (Exodus, Part I).

On a basestar, the datastream is literally composed of a stream of water, which is used in whole or in part as a transmission medium, a storage medium, or both.

Several humanoid Cylons are seen using interfaces in a basestar's command and control center that consist of a illuminated panel covered by a thin layer of water, suggesting that the liquid may serve as both display and input device as a Cylon interfaces the datastream. This behavior is reinforced by the comparative lack of visual displays throughout the command and control center. All information appears to come from these liquid data interfaces.

The interfaces are normally used by the Cylons by placing their hand on the interface, making contact with the illuminated base and the thin liquid layer, which activates the data ports within their arm. The interfaces can also be configured to show visual information such as still photography, such as the photos taken by Gaius Baltar during his exploration of a dying basestar that makes a reconnaissance mission to the Lion's Head Nebula (Torn). Sections of these pictures can be enlarged and sharpened.

The basestar's central computer, the Hybrid, rests within a pool of liquid, connected to many conduits below the surface. Clear liquid drips on the Hybrid from above the pool, suggesting that data might be relayed to and from the Hybrid through the liquid surrounding and falling upon her in some fashion.

Athena accompanies fellow members of a Colonial boarding party that investigates a basestar that is found disabled in space. She instructs others to place "SSR leads" in a pool of water as she attempts to access the basestar's computer database, hoping to make a data dump from the basestar to a Colonial data storage device.

Datapoints are either database records or specific subdatabases in the datastream. On New Caprica, Sharon Agathon tells the resistance that the datapoints indicated that the launch keys she retrieved were not damaged. Some time later, on a disabled basestar, she attempts to access the basestar's datastream and finds its datapoints severely corroded, suggesting that the datastream (and datapoints) have an organic element that is as equally susceptible to viral damage as the humanoid Cylons.

After living humanoid Cylons are found and information on the ship's infection is discovered, the boarding team appears to abort their information gathering attempt (A Measure of Salvation).

When a Cylon is resurrected, they apparently end up in a datastream given that when Ellen Tigh was resurrected after her husband killed her, she was shown in what seemed to be a datastream before she finally downloaded into a new body and resurrected (No Exit).

During the Battle of The Colony, the Final Five use the datastream in Anders' Hybrid tank to combine the parts of resurrection technology they each posses and transmit it to The Colony. It works at first, but apparently as a result of connecting to the datastream like that, a side-effect is that everything about each of the Five is exposed to each other and they each see flashes of each other's memories. It's through this that Galen Tyrol finally learns the truth of his wife's death from Tory Foster's memories: she murdered her to protect her secret and in a rage, Tyrol breaks the link and kills Tory by snapping her neck. Breaking the link causes pain for the Hybrids recieving the data, but doesn't seem to cause the Five any discomfort aside from their shock at what the memory revealed (Daybreak, Part 2).