A communications system is a set of components that allow for the exchange of information between two or more parties. The term can refer to anything from a simple telephone line to a complex NETWORK of computers and other devices. In this crossword, the solution for the term COMMUNICATIONS SYSTEM is NETWORK, which is a type of communications system that consists of interconnected nodes that are able to send and receive data. Networks can be used for a variety of purposes, such as sharing files, streaming media, and providing access to the internet.