What is a Computer Network?

  • Computer Network is a gathering of computers associated with one another through wires, optical fibers, or optical links so different various can interface with one another through a network. 
  • The point of the Computer network is the sharing of assets among different devices. 
  • On account of computer network technology, there are a few sorts of networks that differ from easy to complex level. 

Components Of Computer Network:

Components Of Computer Network

Major components of a computer network are:

NIC(National interface card)

NIC is a device that assists the computer with speaking with another device. The network interface card contains the hardware addresses, the data link layer protocol utilizes this location to distinguish the framework of the network with the goal that it moves the information to the right objective. 

There are two kinds of NIC: Wireless NIC and wired NIC. 
  • Wireless NIC: All the cutting-edge laptops utilize the remote NIC. In Wireless NIC, an association is made utilizing the receiving wire that utilizes the radio wave technology. 
  • Wired NIC: Cables utilize the wired NIC to move the information over the medium. 

Hub

Hub is a networking device that associates all of the devices into numerous gadgets over the network. At the point when the computer demands data from another device and, it sends the request to the Hub. Hub appropriates this solicitation to every one of the interconnected PCs or computers. 

Switches

The switch is a networking device that bunches every one of the gadgets over the network to move the information to another gadget. A switch is superior to Hub as it doesn't communicate the message over the network, i.e., it sends the message to the devices with which it has a place. Hence, we can say that switch sends the message straightforwardly from the source to the destination. 

Cables and connectors

Cables are transmission media that send communication signals. There are three kinds of cables: 

  • Twisted pair cable: It is a rapid that communicates the information over 1Gbps or more. 
  • Coaxial cable: Coaxial cable looks like a TV establishment link. A coaxial link is more costly than a curved pair link, however, it gives a high information transmission speed. 
  • Fiber optic cable: A fiber optic cable is a fast cable that sends the information utilizing light pillars. It gives high information transmission speed when contrasted with a different cable. It is more costly when contrasted with different cables, so it is introduced at the public authority level. 

Router

The router is a device that interfaces the LAN to the web. The router is chiefly used to interface the particular distinct network or associate the web to numerous PCs or computers. 

Modem

Modem interfaces the Computer to the web over the current phone line. A modem isn't coordinated with the Computer motherboard. A modem is a different part of the PC space found on the motherboard. 

Uses Of Computer Network

Asset or Resource sharing: Resource sharing is the sharing of assets like projects, printers, and information among the clients on the network without the necessity of the actual area of the asset and client. 

Server Client model: Computer networking is utilized in the service client model. A server is a focal PC used to store the data and kept up by the framework manager or system administrator. Customers are the machines used to get to the data put away in the worker distantly. 

Communication medium: Computer network carries on as a communication medium among the clients. For instance, an organization that contains more than one PC has an email framework that the workers use for day-by-day correspondence. 

Web-based business: Computer network is likewise significant in organizations. We can do the business over the web. For instance, amazon.com is doing their business over the web, i.e., they are doing their business over the web.