Local Area Network (LAN)

In the ever-evolving landscape of network connectivity, understanding the significance of Local Area Networks (LANs) is paramount. Let's embark on a journey to explore the essence of LANs, their functionality, and their role in shaping modern connectivity.

Delving Into LANs

LAN, an acronym for Local Area Network, represents a network infrastructure that connects devices within a confined geographical area. But what exactly does this encompass?

LAN Definition: A LAN serves as a network that interconnects devices, such as computers and printers, within a relatively small area. This can include environments like schools, offices, or even home networks.
LAN Classification: LANs are categorized into different classes based on their method of data transmission, including Ethernet, Token Ring, Token Bus, and Fiber Distributed Data Interface (FDDI).

Wired vs. Wireless LANs

LANs can manifest in various forms, including wired and wireless configurations:

Wired LAN: In a wired LAN setup, devices are connected using LAN cables, typically Ethernet cables, to establish network connectivity.
Wireless LAN (WLAN): On the other hand, WLANs utilize wireless communication to link devices within a limited area, eliminating the need for physical cables.

LAN in Action

LANs play a pivotal role in facilitating seamless communication and resource sharing within a confined space. Here's how they operate:

Resource Sharing: LANs enable the sharing of resources such as printers and storage devices among connected devices, enhancing collaboration and productivity.
Connectivity Expansion: With the proliferation of devices in home networks, LANs are increasingly adopted to provide and expand connectivity, fostering a connected ecosystem within residential spaces.

Summary

A Local Area Network (LAN) is a network that interconnects devices – like computers and printers – within a relatively small area such as schools, laboratories, university campuses or office buildings. Based on the rising number of devices on a home network and the need for connectivity on these devices, LAN is now also implemented as a means of providing and expanding connectivity in home networks.

LAN is classified into four classes depending on their method of data transmission: Ethernet, Token Ring, Token Bus, and Fiber Distributed Data Interface (FDDI).

LAN can be wired or wireless. A wired LAN is one which uses Ethernet cable to connect devices in to a network While a wireless LAN (WLAN) is a wireless computer network that links two or more devices using wireless communication to form a local area network (LAN) within a limited area. In a local area network, resources – like printers and storage. The major limitation of LAN network is that LAN is designed with constraints of speed, distance, and cost and is not intended for long distances as it spans a distance of about a few hundred meters at most.