The Collaborative International Dictionary of English v.0.48:
networking \net"work*ing\, n.
Interchanging information or services, among a group; -- of
persons or organizations.
The Free On-line Dictionary of Computing (30 December 2018):
Hardware and software data communication systems.
The OSI seven layer model attempts to provide a way of
partitioning any computer network into independent modules
from the lowest (physical) layer to the highest (application)
layer. Many different specifications exist at each of these
Networks are often also classified according to their
geographical extent: local area network (LAN), metropolitan
area network (MAN), wide area network (WAN) and also
according to the protocols used.
See BITNET, Ethernet, Internet, Novell, PSTN,
[Tanenbaum, A., "Computer Networks; 2nd ed.", Prentice Hall,
Englewood Cliffs, NJ, 1989.]