Final answer:
The hardware that makes up the enterprise-wide cabling system is called the backbone.
Step-by-step explanation:
The term that describes the hardware that makes up the enterprise-wide cabling system is backbone.
This refers to the high-capacity cables that connect different parts of the network, such as switches, routers, and servers, enabling them to communicate with each other.
For example, in a large office building, the backbone cabling would run through the building's main telecommunications room, connecting all the local area networks (LANs) or departments together.