Local Area Networks

Computer networks connecting devices across a room, building, campus, or factory using shared media and packet protocols.

Core metadata

ID: local_area_networks
Era: Modern
First known date: 1970 (decade)
Region: United States and global computing industry
Review status: source_checked
Maturity: established

Prerequisites

Dependents

Ethernet (ethernet)

Fields

Telecommunications & Networking

Field lanes

Telecommunications & Networking: Access Networks

Node sources

Local area network (Encyclopaedia Britannica, 2026, textbook) • Supports: node, maturity
Locator: Britannica defines local area networks as computer networks serving a limited area and describes LAN communication among connected computers and devices.

Prerequisite edge evidence

Edge/source evidence summary:

Prerequisite edges: 2
Average edge confidence: 68%
Prerequisite sources: 2
expert_inference: 2

Prerequisite	Type	Confidence	Evidence level	Note	Sources
Computer Networking (computer_networking)	enabling	68%	expert_inference	Computer Networking provides a capability that enables this technology without being the only possible path.	Local area network (Encyclopaedia Britannica, 2026, textbook) • Supports: node, maturity, edge Locator: Britannica defines local area networks as computer networks serving a limited area and describes LAN communication among connected computers and devices.
Packet Switching (packet_switching)	enabling	68%	expert_inference	Packet Switching provides a capability that enables this technology without being the only possible path.	Local area network (Encyclopaedia Britannica, 2026, textbook) • Supports: node, maturity, edge Locator: Britannica defines local area networks as computer networks serving a limited area and describes LAN communication among connected computers and devices.

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