In computer networking, what do we call a local network used for sharing data, software, and hardware resources among several users who own microcomputers within a limited area (such as a single building or campus)?

Introduction / Context:
A foundational taxonomy in networking classifies networks by geographic scope and purpose. When multiple users with microcomputers (personal computers) share files, applications, and peripherals inside a small physical area, we typically deploy a Local Area Network. Recognizing the defining traits of a LAN helps distinguish it from larger-area technologies such as MAN and WAN, or service-provider offerings like VAN.

Given Data / Assumptions:

• Multiple users own microcomputers and need to share data, software, and hardware (e.g., printers).
• The physical scope is confined to a building, floor, office, or campus.
• The goal is efficient, high-speed local connectivity and resource sharing.

Concept / Approach:
A Local Area Network (LAN) interconnects devices within a limited area using high-speed links (typically Ethernet and Wi-Fi). It provides directory services, file and print sharing, and local application access with low latency and high throughput. By contrast, a Metropolitan Area Network (MAN) spans a city, and a Wide Area Network (WAN) spans regions or countries. A Value Added Network (VAN) is a third-party managed service overlay, not the basic local infrastructure.

Step-by-Step Solution:

Verification / Alternative check:
Typical LAN speeds are 100 Mbps to multi-Gbps with switched Ethernet or enterprise Wi-Fi, and services such as DHCP, DNS, and file servers are locally administered. These characteristics confirm the LAN classification for small-area, resource-sharing environments.

Why Other Options Are Wrong:

• WAN: too broad in geography; used to interconnect distant sites.
• MAN: spans a city/metropolitan region, not just a building/campus LAN.
• VAN: a provider-mediated service overlay, not a local resource-sharing network.
• None of the above: incorrect because LAN precisely fits.

Common Pitfalls:
Confusing service scope (VAN) with physical topology; thinking Wi-Fi implies WAN—Wi-Fi within a building is a LAN access medium; assuming “campus” implies MAN (a campus is still a LAN domain under one organization).

Final Answer:
LAN