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What Is LAN & Ethernet?

Meaning, reference and use of the term: What Is LAN & Ethernet?

What Is LAN & Ethernet?

LAN

A Local Area Network (LAN) is a network that connects computers and devices within a limited area such as a home, school, or office building. It allows for the sharing of resources like files, printers, and internet connections among multiple devices.

Using a LAN is important for several reasons. It enhances productivity by enabling quick and easy sharing of resources and data among multiple devices. LANs provide high-speed and reliable connections, which are crucial for tasks requiring large data transfers or real-time communication. They also offer enhanced security compared to wireless networks, as data transmission within a wired LAN is less susceptible to interception. Furthermore, LANs can be easily scaled and customised to meet the specific needs of any environment, making them a versatile solution for both small and large networks.

Mac mini Servers Connected With Ethernet
Mac mini Servers Connected With Ethernet

Ethernet

Ethernet, on the other hand, is the most common technology used to build LANs. It uses wired connections to transmit data at high speeds, ensuring stable and secure communication. Ethernet cables, such as Cat5e or Cat6, connect devices to switches or routers, forming the backbone of a LAN. Together, LAN and Ethernet enable seamless connectivity and efficient data exchange in localised environments.

Ethernet Cables

Cat6 (Category 6) cables offer improved performance, supporting speeds up to 10 Gbps and frequencies up to 250 MHz. They are ideal for environments with higher data demands, such as larger offices or networks with heavy multimedia use.

Cat6a (Category 6 Augmented) cables provide even better performance, supporting speeds up to 10 Gbps and frequencies up to 500 MHz. They are designed for environments requiring the highest level of performance and minimal interference, making them suitable for data centres and high-performance network applications.

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