what is network :-
A network, in the context of computers and communication, refers to a collection of interconnected devices and systems that can communicate and share resources.
These devices can include computers, servers, routers, switches, and other hardware. The connections between these devices can be established using various technologies such as wired (e.g., Ethernet) or wireless (e.g., Wi-Fi) connections.
TYPES OF NETWORK :
Local area network (LAN)
Personal area network (PAN)
Wireless local area network (WLAN)
Campus area network (CAN)
Metropolitan area network (MAN)
Wide area network (WAN)
Storage area network (SAN)
Passive optical local area network (POLAN)
Enterprise private network (EPN)
Virtual private network (VPN)
System-area network (SAN)
Home Area Network (HAN)
Peer-to-Peer (P2P) Networking
1. Local area network (LAN) :-
A network that is limited to a small geographic area, such as a single building or a campus. LANs typically use high-speed, wired connections like Ethernet and are common in homes, offices, and schools.
2.Personal area network (PAN) :-
A network for personal devices, typically within the range of an individual person. Bluetooth is a common technology used for PANs.
3.Wireless local area network (WLAN) :-
WLAN stands for Wireless Local Area Network. It is a type of local area network (LAN) that uses wireless communication to connect devices within a limited geographical area, such as a home, office, or campus
WLANs provide the convenience of wireless connectivity, allowing devices to connect to the network without the need for physical cables.
4.Campus area network (CAN) :-
It typically used to connect multiple buildings within a university campus or business campus.
5.Metropolitan area network (MAN) :-
A network that covers a larger geographic area than a LAN but is smaller than a WAN. It usually spans a city or a large campus.
6.Wide area network (WAN) :-
A network that spans a larger geographic area, connecting multiple LANs. WANs can be used to connect offices in different cities or even countries. The internet itself is a global WAN.
7.Storage area network (SAN) :-
A specialized network that connects storage devices (like disk arrays) to servers, allowing them to access and share data.
It provides a way to centralize data on a non-localized network that differs from the main operating one.
8.Passive optical local area network (POLAN) :-
POLAN is a low-cost network that can link various locations to one central network.POLANs have the power to connect multiple entities to one hub of information.
9.Enterprise private network (EPN) :-
An enterprise private network, or an EPN, is an exclusive network that businesses build and operate to share company resources at high speeds. EPNs are typically unique to a specific company, which ensures the connection is secure.
10.Virtual private network (VPN) :-
A secure network that uses the public internet to connect remote users or offices to a private network. It provides a secure and encrypted connection over the internet.
11.System-area network (SAN) :-
A system area network, or a SAN, is a broad local network that provides connections in clusters. The various devices connected to a SAN operate as a single system.
SANs are newly developing networks that operate at high speeds.
12.Home Area Network (HAN) :-
A network within a home that connects various devices and systems, such as computers, printers, and smart home devices.
13.Peer-to-Peer (P2P) Networking :-
A decentralized network model where devices communicate directly with each other without a central server. File-sharing applications often use P2P networking.