What is a LAN (Local Area Network)
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What is a LAN (Local Area Network)
A Local Area Network (LAN) is a computer network that connects devices within a limited geographic area such as a home, office building, or school. It is used for sharing resources, such as printers, files, and applications, and for communication between devices. A LAN can be wired or wireless, depending on the type of devices and the intended use.
A wired LAN is typically based on Ethernet technology and uses cables, such as twisted pair or fiber optic, to connect devices to a central network device, such as a switch or router. The switch or router acts as a central hub that connects all the devices on the network and manages the flow of data between them. Ethernet LANs can operate at different speeds, ranging from 10 Mbps to 10 Gbps, depending on the type of cable and network equipment used.
A wireless LAN, also known as Wi-Fi, uses radio waves to connect devices to a network without the need for cables. Wireless LANs are typically used for mobile devices such as laptops, smartphones, and tablets, but can also be used for desktop computers that are equipped with wireless network adapters. Wireless LANs can operate at different speeds, ranging from 11 Mbps to several hundred Mbps, depending on the type of wireless technology used and the distance between devices.
In addition to connecting devices, a LAN can also provide access to the Internet and other external networks. This is typically done by connecting the LAN to a router or gateway device that provides the connection to the external network. This allows devices on the LAN to access resources and services on the Internet, such as websites, email, and online applications.
A LAN can be configured in various ways depending on the intended use and the number of devices to be connected. The most common LAN configurations include peer-to-peer and client-server.
In a peer-to-peer LAN, each device on the network has equal status and can share resources with other devices. This type of LAN is typically used in small networks, such as in a home or small office.
In a client-server LAN, one or more devices act as servers that provide resources and services to other devices on the network. This type of LAN is typically used in larger networks, such as in a corporate environment, where centralized control and management is required.
LANs have many benefits, including increased productivity, resource sharing, and cost savings. By sharing resources such as printers and files, LAN users can avoid the need for each device to have its own separate resources, which can be expensive and inefficient. In addition, LANs provide a secure and reliable way for devices to communicate and share data, which is essential for businesses and organizations.
In summary, a LAN is a computer network that connects devices within a limited geographic area. It can be wired or wireless, and can provide access to the Internet and other external networks. LANs can be configured in various ways depending on the intended use and the number of devices to be connected. They provide many benefits, including increased productivity, resource sharing, and cost savings.
What is a LAN (Local Area Network)
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