hierarchical communication system
1. A physical organization of communications facilities, each higher level covering a wider or more general area of operation than the next lower level. As an example, a large bank might have a local area network within each branch, connecting the teller stations. Several branches might be linked to a data concentrator, connected to regional concentrators, which in turn link to the bank's main data processing center.
2. A logical organization of communication facilities, in which the lowest levels deal with the physical network while higher levels deal with the communication between specific applications. See also protocol.
"hierarchical communication system." A Dictionary of Computing. . Encyclopedia.com. (March 12, 2019). https://www.encyclopedia.com/computing/dictionaries-thesauruses-pictures-and-press-releases/hierarchical-communication-system
"hierarchical communication system." A Dictionary of Computing. . Retrieved March 12, 2019 from Encyclopedia.com: https://www.encyclopedia.com/computing/dictionaries-thesauruses-pictures-and-press-releases/hierarchical-communication-system