What Is A Computer Network? Types And Classification

What Is A Network? Networking is a group of computer systems linked to one another. The community permits the pc to speak with one another and share sources and knowledge. In normal language, a bunch of computer systems or devices are linked collectively to share information or sources. This is the definition of a network.

Networking is most clearly outlined as a “communication system – a computer that is on the network is a communication system” as a result of it allows you to talk with different customers, share information, and share peripherals.
Example: When you’re browsing on the web, your pc is part of the most important community on this planet called the Internet. If you could have entry to the web at the house, your gadgets are a part of a LAN Local Area Network.

What Is A Computer Network?

Advantages of Networking- what is a network .

  • Share the info and knowledge.
  • Sharing Internet.
  • Sharing devices (printer DVD author HD and so forth.)
  • Sharing functions.
  • Time-saving.
  • Money or cost-saving.
  • Game playing.

Disadvantages of Networking.

  • Less security.
  • Virus.

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Requirements of Networking.

There are two requirements.

1)Physical requirement.

  • Two or extra computer systems.
  • LAN card.
  • LAN cable with RJ45 connector.
  • Centralized devices (switch, router, hub.)

2)Logical requirement.

Types of Network.

What is networking?

Local Area Network (LAN) – A Local Area Network is a computer network covering a small bodily space like a house, workplace, or small group of buildings.
It refers to a combination of computer {hardware} and transmission media which are comparatively small as well.
Some of the LAN technologies are Ethernet, Token Ring, and FDDI. Ethernet is by far the most well-liked wired LAN technology.
Transmit for short-range typically 100m.

LAN Characteristics

  • Limited geographic space
  • Moderate to the high data rate
  • Inexpensive media
  • High connectivity and entry
  • Decentralized management

Personal Area Network (PAN) – Short-range networking expertise that makes use of the physique for transmitting alerts together with gadgets that person wears or is available in shut contacts, like instance: Mobile Bluetooth.
Transmit for short-range typically 10m.

Campus Area Network (CAN) –  A Campus Area Network is a computer network made up of an interconnection of LAN in a restricted geographical space. It may be thought of as one type of a metropolitan Area Network(MAN) particular to an instructional metropolis.

storage Area Network (SAN) –  New varieties of community makes use of high-speed community hyperlinks between servers in enterprise and reside on centralized storage. Sideband hyperlink is connecting the SAN part is totally separated from the community that hyperlinks shopper and server to offer centralized management over community storage. Much costlier.  

What is networking?
  • Fast-entry to SAN storage.
  • Backup from a single location.
  • Extra stage of safety and entry management.
  • Easier to extend storage capability.

Metropolitan Area Network (MAN) – Two or more computer systems are linked to one another which are geographical areas separated and linked throughout the metropolis to town.
Telephone media is used.
Example: College Campus.

Wide Area Network (WAN) – Two or more computer systems are linked to one another which are geographical areas separated and linked with the town to metropolis or nation to nation.
Satellite media is used.
Example: Airport community, Internet.

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WAN Characteristics

  • Lower bandwidth in comparison with LANs
  • Typically interconnected a number of LANs
  • Exist in an infinite geographic space
  • Some sources, sometimes knowledge communication gear, is managed externally to organizations utilizing the wan

Peer to see community:  Peer to see community permits any entity to each request and supply community companies. Peer to see community software program is designed in order that friends carry out the identical or related features for one another.

Server shopper community or server-centric community: server-client community includes strictly outlined roles. By definition, a server-client community locations restrictions upon which entity could take requests or service them. Currently, the most well-liked private pc networks are a server-client community.

Peer to peerServer to client
It is called a worked group It is called a domain
Each machine working as an administrator and connect in peer to peer network(1 to 1 communication) Only one machine is acting as administrator and others are clients like the centralized server model.
No centralized management Centralized management
Local authentication Centralized authentication
It is used for the small network It is used for the large network
Only 20 machines can be connected simultaneously 16777214 machine can be connected simultaneously
Each machine has client OS Window XP, Vista,7, 8, 10 One server OS and others are client OS Server 2000, 2003, 2008, 2012, 2016.

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