A system can be a cluster of PC(Personal Computer)systems and completely totally different computing hardware devices that area unit joined on through communication channels to facilitate communication and resource-sharing among a decent vary of users. Network share normally classified supported their characteristics.
Networks are used to:
- Facilitate communication via email, video conferencing, instant electronic communication, etc.
- Enable multiple users to share one hardware device sort of a printer or scanner
- Enable file sharing across the network
- Allow for the sharing of code or operational programs on remote systems
- Make info easier to access and maintain among network users
- Types of Networks
1. Personal Area Network (PAN)
The smallest and most simple form of network, a PAN is formed of a wireless electronic equipment, a computer or electronic equipment, phones, printers, tablets, etc., and revolves around one person in one building. These forms of networks square measure usually found in little offices or residences, and are managed by one person or organization from one device.
2. Local Area Network (LAN)
We’re assured that you’ve heard of those types of networks before – LANs are the foremost often mentioned networks, one in every of the foremost common, one in every of the foremost original and one in every of the only types of networks. LANs connect groups of PC(Personal Computer) and low-voltage devices along across short distances (within a building or between a bunch of two or three buildings in shut proximity to each other) to share info and resources. Enterprises usually manage and maintain LANs.
Using routers, LANs will connect to wide area networks (WANs, explained below) to rapidly and safely transfer data.
3. Wireless Local Area Network (WLAN)
Functioning sort of a local area network, WLANs create use of wireless network technology, like LAN. usually seen within the same types of applications as LANs, these types of networks don’t need that devices consider physical cables to attach to the network.
4. Campus Area Network (CAN)
Stands for “Campus area Network.” A will may be a network that covers an academic or company field. Examples include elementary schools, university campuses, and company buildings.
5. Metropolitan Area Network (MAN)
These types of networks are larger than LANs however smaller than WANs – and incorporate components from each types of networks. MANs span a complete geographical area (typically a city or town, however generally a campus). possession and maintenance is handled by either one person or company (a native council, a large company, etc.).
6. Wide Area Network (WAN)
Slightly a lot of complicated than a local area network, a WAN connects computers along across longer physical distances.this permits computers and low-voltage devices to be remotely connected to every alternative over one giant network to communicate even when they’re miles apart.
The Internet is that the most basic example of a WAN, connecting all computers along round the world. due to a WAN’s huge reach, it’s usually closely-held and maintained by multiple directors or the general public.
7. Storage-Area Network (SAN)
As a dedicated high-speed network that connects shared pools of storage devices to many servers, these types of networks don’t consider a local area network or WAN. Instead, they move storage resources off from the network and place them into their own superior network. SANs are often accessed within the same fashion as a drive connected to a server.Two types of SAN include converged, virtual and unified SANs.
8. System-Area Network (also called SAN)
A SAN could be a comparatively native network designed for high-speed interconnection in cluster server to server, data processing processor to processor, and SANs. The design is currently nearly completely switched material. Fiber Channel is associate example of a SAN technology. It provides a high-speed switched atmosphere within which any device on the network will connect with the other device and communicate over a passionate high-speed link.
9. Passive Optical Local Area Network (POLAN)
As another to ancient switch-based Ethernet LANs, POLAN technology are often integrated into structured cabling to over come issues concerning supporting traditional Ethernet protocols and network applications like poe (Power over Ethernet). A point-to-multi point local area network design, POLAN uses optical splitters to separate associate optical signal from one strand of single mode optical fiber into multiple signals to serve users and devices.
10. Enterprise Private Network (EPN)
These types of networks are built and closely-held by businesses that wish to firmly connect its numerous locations to share computer resources.
11. Virtual Private Network (VPN)
By extending a private network across the internet, a VPN lets its users send and receive data as if their devices were connected to the non-public network – though they’re not. Through a virtual point-to-point affiliation, users will access a private network remotely.