What is a primary function of local area networks (LANs)?

The primary function of local area networks (LANs) is to link terminals and share information. LANs are designed to connect computers and devices within a limited geographic area, such as a single building or a group of buildings. This connectivity allows users to share resources such as files, applications, and printers, facilitating efficient communication and collaboration within organizations or homes.

By linking terminals, LANs enable the smooth sharing of data, which can significantly enhance productivity. Users can quickly access shared files or collaborate in real-time on projects without the need for external networking protocols or the internet. This internal structure is pivotal for businesses and educational institutions, where fast access to shared resources is essential.

While connecting computers to the internet is a related function of LANs, it does not encapsulate their primary purpose. Likewise, enabling mobile communication and providing data storage solutions are functionalities that may involve LANs but do not describe their core function.