Description: A digital network (LAN) is a system for interconnecting devices that uses digital signals to transmit data, allowing communication and information exchange between computers and other devices within a limited geographical area, such as an office, building, or campus. Unlike analog networks, which transmit signals in the form of continuous waves, digital networks convert information into binary data, enabling greater efficiency and speed in transmission. LANs are fundamental to the infrastructure of information technology, as they facilitate shared access to resources such as printers, servers, and Internet connections. Additionally, digital networks can be wired, using Ethernet cables, or wireless, through technologies like Wi-Fi, providing flexibility in installation and use. The ability of LANs to connect multiple devices and enable real-time communication has transformed how organizations operate, promoting collaboration and productivity.
History: LANs began to develop in the 1960s with the creation of ARPANET, which laid the groundwork for computer interconnection. In the 1980s, the Ethernet standard was introduced, enabling the creation of more efficient local networks. As technology advanced, LANs became more accessible and popular, especially with the advent of wireless technologies in the 1990s.
Uses: LANs are primarily used in business and educational environments to facilitate communication between computers, share resources such as printers and servers, and provide Internet access. They are also common in homes to connect devices such as computers, tablets, and smartphones.
Examples: An example of a LAN is the network of an office where several computers are connected to a central server, allowing employees to access shared files and use common printers. Another example is a home network that connects a router to various devices, such as laptops and smartphones, to access the Internet.
