A local area network (LAN) is a network of groups of devices such as computers, consumer electronics, IoT devices, routers, hubs, switches, servers, ports, cables, and client computers and telephone systems that are heterogeneously designed to connect and communicate with one another across an area in the small geographic area that allows the device to connect to internal servers, web servers, and other LANs via a wide area network.

As virtualization technology advances, it drives the growth of virtual LANs, which allow network administrators to logically group network nodes and partition their networks without requiring major infrastructure changes. For example, for a business that has multiple divisions/departments/employees and each has a computer as a work tool, it could logically be connected to the same Switch but segmented to behave as if they were separate. The more widespread the development of Wi-Fi technology, the LAN is becoming commonplace in all fields, no longer a special device that is only owned by certain businesses.

A wide Area Network (WAN) is a network that has a wider geographical area coverage than a Local Area Network (LAN) and can even cross continents, countries, etc. A wide Area Network (WAN) can consist of several Local Area Networks that are connected. Wide Area Networks (WAN) can transmit very large data compared to Local Area Networks (LAN). Wide area networks (WANs) become essential when organizations become too large or physically distant to maintain connectivity or secure business data. The connectivity technologies advances, such as the Internet and Wi-Fi, there are more options for business entities to configure wider networks. The growth of cloud computing technology has enabled business entities to adopt SD-WAN where SD-WAN is a special application form of software-defined networking (SDN) technology applied to WAN (wide area network) connections.

Mechasolusindo International, PT., (MSI) is a Telecommunications, security, and control system integrator where one of the scopes is Local Area Network (LAN)/Wide Area Network (WAN). 

Mechasolusindo International, PT., (MSI) provides solutions in the field of Local Area Network (LAN)/Wide Area Network (WAN) systems such as security, cabling, hardware, connectivity, and administration. System integration and system operation activities include design, development, implementation, and maintenance.