root docs: updated Terminology page

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Troy McConaghy 2017-04-11 11:15:55 +02:00
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# Terminology
There is some specialized terminology associated with BigchainDB. To get started, you should at least know what what we mean by a BigchainDB *node*, *cluster* and *consortium*.
There is some specialized terminology associated with BigchainDB. To get started, you should at least know the following:
## Node
## BigchainDB Node
A **BigchainDB node** is a machine or set of closely-linked machines running RethinkDB/MongoDB Server, BigchainDB Server, and related software. (A "machine" might be a bare-metal server, a virtual machine or a container.) Each node is controlled by one person or organization.
A **BigchainDB node** is a machine or set of closely-linked machines running RethinkDB/MongoDB Server, BigchainDB Server, and related software. Each node is controlled by one person or organization.
## Cluster
## BigchainDB Cluster
A set of BigchainDB nodes can connect to each other to form a **cluster**. Each node in the cluster runs the same software. A cluster contains one logical RethinkDB datastore. A cluster may have additional machines to do things such as cluster monitoring.
A set of BigchainDB nodes can connect to each other to form a **BigchainDB cluster**. Each node in the cluster runs the same software. A cluster contains one logical RethinkDB/MongoDB datastore. A cluster may have additional machines to do things such as cluster monitoring.
## Consortium
## BigchainDB Consortium
The people and organizations that run the nodes in a cluster belong to a **consortium** (i.e. another organization). A consortium must have some sort of governance structure to make decisions. If a cluster is run by a single company, then the "consortium" is just that company.
The people and organizations that run the nodes in a cluster belong to a **BigchainDB consortium** (i.e. another organization). A consortium must have some sort of governance structure to make decisions. If a cluster is run by a single company, then the "consortium" is just that company.
**What's the Difference Between a Cluster and a Consortium?**