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Computer Networking

Introduction

Computer networking is the interconnection of computers, typically by using a network. This provides a set of capabilities to allow disparate systems to communicate and share resources over some type of data interconnection medium. Computer networks allow sharing information between computers, creating an infrastructure that carries traffic and enables users to access resources in both local and remote sites.

Computer networking

Computer networking is the field of computer science, engineering and electronics concerned with the design, development, maintenance and application of computer networks. Computer networking is a branch of information technology that deals with the use of communication technologies to enable effective information sharing among computers on a local area network (LAN) or wide area network (WAN).

Computer networking may be divided into two subfields:

  • LANs are used for high-speed data transfers between devices such as personal computers, servers and printers connected to an internal network; they are typically slower than WANs but cheaper because no centralised switching equipment is required. LANs typically use Ethernet as their underlying technology; however other technologies such as token ring can also be used in conjunction with Ethernet technology - this allows multiple nodes on one physical cable which will allow them all access at once rather than having several separate cables running from node A through B then back again before reaching C

Types of network


There are three types of networks, each with their own set of features and functionality. These include:

  • The internet is a global network that connects all computers on the planet to each other via an IP address (Internet Protocol). This can be used for sending emails, browsing the web or streaming video.

  • An intranet is a private corporate network with limited access to outside parties that uses only ports below 1024 and above 2047 for communications between internal systems.

  • A vlan allows you to create separate subnetworks within your main one and assign them different addresses within your overall network structure by using VLAN 2 or 3 tags in your switch configuration settings

They have different use and applications.

  • LAN: Local Area Network

  • WAN: Wide Area Network

  • VPN: Virtual Private Network

Conclusion


Having a good understanding of computer networking can help you in many areas. It is something we take for granted today, but without it we would not be able to do so many things that we do today. The way computers communicate with each other is called networks or data communication networks. This type of network allows devices across an area network (LAN) or wide area network (WAN).

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