Data communications equipment (DCE) refers to computer hardware devices used to establish, maintain and terminate communication network sessions between a data source and its destination. DCE is connected to the data terminal equipment (DTE) and data transmission circuit (DTC) to convert transmission signals.
Communication means to share or exchange information, views, thoughts via different medium. It is the process of sending information from source to destination.Communication system is a system that describes communication with many hardware and software tools.
In telecommunication, a communications system is a collection of individualcommunications networks, transmission systems, relay stations, tributary stations, and data terminal equipment (DTE) usually capable of interconnection and interoperation to form an integrated whole.