A terminal is the point at which a conductor from an electrical component, device or network comes to an end and provides a point of connection to external circuits. A terminal may simply be the end of a wire or it may be fitted with a connector or fastener. In network analysis,means a point at which connections can be made to a network in theory and does not necessarily refer to any real physical object. In this context, especially in older documents, it is sometimes called a pole.
The connection may be temporary, as seen in portable equipment, may require a tool for assembly and removal, or may be a permanent electrical joint between two wires or devices.
All electric cells have two terminals. The first is the positive and the second is the negative. The positive looks like a metal cap and the negative looks like a metal disc. The current flows from the positive, and out through the negative terminal, replicative of current flow (positive (+) to negative (-) flow).