A map from your PC to the rest of the world

Your PC

Your office/lab PC has a copper wire that connects it to a repeater

The PCs in the lab are connected to the same copper wire which is connected to a port in the repeater

Each area of the building has PCs that are connected to a copper wire which is connected to a port in the repeater

Also connected to the repeater by copper wires are the NOVELL/PC File Server (a.k.a. SOCNET) and the UNIX Compute Servers

Our repeater is connected by a copper wire to a hub in the closet on the first floor

The hub in the closet on the first floor is connected to campus fiber optic backbone network, called DUKENET

Many other department level networks are also connected to DUKENET

DUKENET and other statewide university networks are connected to a statewide network called NCREN

NCREN is connected to other regional and commercial networks via the internet. Although you can consider any part of the system as part of the internet.