Network:-
A computer network is a set of interconnected computers that communicate and share resources, such as files, printers, and internet access. There are many types of computer networks, including
Local Area Network (LAN):
LANs connect devices within a limited geographic area, such as an office, home, or campus. They typically use Ethernet cables or Wi-Fi for connectivity.
Wide Area Network (WAN):
WANs cover larger geographic areas and connect LANs across cities, states, or even countries. The internet is a wide example of a WAN.
Metropolitan Area Network (MAN):
MANs have a coverage range between LANs and WANs, typically serving a city or a large campus.
Wireless Local Area Network (WLAN):
WLAN use wireless technology like Wi-Fi to connect devices within a limited area. Wireless Local Area Network is common in homes and businesses.
Personal Area Network (PAN):
PANs are small networks for connecting devices like smartphones, tablets, and laptops in close proximity, often using Bluetooth.
Client-Server Network:
In this model, one or more powerful computers (servers) provide services to other computers (clients) on the network. It’s common in businesses and the internet.
Peer-to-Peer Network:
In a peer-to-peer network, all computers have equal status and can share resources directly with each other. This is common in small networks or for file sharing.
Virtual Private Network (VPN):
VPNs create secure, encrypted connections over public networks like the internet, allowing remote users to access a private network securely.
Intranet:
An intranet is a private network within an organization, typically using web technologies for sharing information among employees.
Extranet:
An extranet extends an intranet to selected external users, like customers or suppliers, providing limited access to certain resources.