When several computers are interconnected, but no computer occupies a privileged position, the network is usually referred to as a peertopeer network. Addresses are numeric quantities that are easy for computers to work with, but not for humans to remember. Chapter one introduction to computer computer a computer is an electronic device, operating under the control of instructions stored in its own memory that can accept data input, process the data according to specified rules, produce information output, and store the. This course is designed to provide a full overview of computer networking.
Each computer on a network must have a network card. Download free networking courses and tutorials training in pdf lan, wan, router, switcher,the internet, intranet, would you like to learn how computer networks work. If the manuals are in pdf form, keep the pdfs handy. Computernetworks andcommunicationsbasic concepts of computer networks 2. Through them, devices connected to your network can communicate with one another and with other networks, like the internet. Ip is a standard that defines the manner in which the network layers of two hosts interact. Networks are made up of various devices computers, switches, routersconnected together by cables or. The second reason is that the computer networking community is a strong. Networking basics lans, wans, and mans three main networking technologies are used to connect computers and networks together.
The telephone network is a typical circuitswitched network communication requires a connection setup phase in which the network reserves all the necessary resources for that connection links, bu. If youre like many people, you may automatically cringe when you hear that word, especially if you envision business gettogethers where everyone competes to see who can hand out the most business cards in recordbreaking time. Networking tutorial in pdf computer tutorials in pdf. Understand the hardware infrastructure of computers. Windows guide networking 101 n network hubs and switches. Computers may connect to each other by either wired or wireless media. The more people in your network, the better your chances of finding that perfect job. A free powerpoint ppt presentation displayed as a flash slide show on id. Find materials for this course in the pages linked along the left.
Here we look at the most basic features of networking and packets. It covers the lan, internetworking and transport layers, focusing primarily on tcpip. We cover network types, wired, wifi, protocols, and alternate networking. Peer to peer networks do not have a central control system. Learn about the glue that holds our networks together in this lan primer. Data communication and computer network tutorialspoint. Our objective is for you to understand what these concepts are and what their role in network sharing is. Data communication and computer network 8 let us go through various lan technologies in brief. This document covers the basics of how networking works, and how to use different devices to build networks. An introduction to computer networks open textbook library. Ppt networking basics powerpoint presentation free to. Its a term you have likely heard many times throughout your educational and professional journey. Switches, routers, and wireless access points are the essential networking basics. Basic of networking a computer network consists of a collection of computers, printers and other equipment that is connected together so that they can communicate with each other.
A computer network consists of a collection of computers, printers and other devices that are connected together so that they can talk to each other. It is a collection of computers nodes and transmission channels links that allow people to communicate over distances, large and small. Audit to track securityrelated events, such as logging onto the system or network, accessing objects, or exercising usergroup rights or privileges. Computer networks are built with a combination of hardware and software. Lecture notes computer networks electrical engineering.
However, this book will focus on computer networksconnecting computers and having them communicate with each other. Computer networks are like a phone system for computers a computer places a call to exchange data with another computer the communication is always just bytes worth knowing the basics, you are using the network constantly. A network can be defined as a group of computers and other devices connected in some ways so as to be able to exchange data. Computer networks pdf notes free download cn notes.
This tutorial is about basic networking concepts, like what is the brain of network, who give the instructions and how the traffic is control and more. A network is a group of two or more computer systems linked together. Routers connect computers and networks to each other for example, a router usually connects a home network to the internet. No experiment 1 study of different types of network cables and practically implement the crosswired cable and straight through cable using clamping tool.
Networking 101 is generally targeted towards students studying toward a bachelors degree in computer science, information systems, or information technologies. Each of the devices on the network can be thought of as a node. Switches, routers, and wireless access points perform very. Lan network is made up of two or more computers connected together in a. Even though the workgroup is a very old concept that may not seem relevant in todays. If the network is large enough and lets you access a. A network refers to two or more connected computers that can share resources such as data, a printer, an internet connection, applications. The bits and bytes of computer networking coursera. A nic pronounced nick is also known as a network card. It also applies to persons that are simply interested in a general introduction to data communications and networking. Computer networking 101 hh rev1 page 3 fundamentals what is a computer network.
It connects the computer to the cabling, which in turn links all of the computers on the network together. Instead of one single large machine being responsible for all aspects of a process, separate computers usually a personal computer or workstation handle a subset. This book is designed to provide information about computer networking. Peer to peer network is useful for a small network containing less than 10 computers on a single lan. Fig 1 gives an example of a network in a school comprising of a local area network or lan connecting computers with each other, the internet, and various servers. Computer a laptop has an all in one design built in monitor keyboard. Learn basic networking in 4 minutes very important. A bluetooth personal area network may simply connect your home pc with its. For the remainder of this text, the term networkwill. An introduction to computer networksis a free and open generalpurpose computer networking textbook, complete with diagrams and exercises. Click on the network you want to join and then click connect. Fundamentals of computer networking and internetworking. A network connects computers, mobile phones, peripherals, and even iot devices.
Pdf networking is referred as connecting computers electronically for the purpose of sharing information. If there is one bit in error, the receiver could receive 011 or 101 or. Protocol layering d needed because communication is complex d intended primarily for protocol designers. A computer network is a group of computers, two or more, connected to each other through a wire or a cable or even wireless. Ip addresses are 32 bit long, hierarchical addressing scheme. In this type of network, every computer can communicate with all the other machines on the network, but in general each one stores its own files and runs its own applications. In order to better understand how todays internet works, we will take a look at how humans and computers have communicated using technology over the years. This technology was invented by bob metcalfe and d. After a successful setup, the communicating systems are connected by a set of links that are dedicated to their. Lans and wans can be interconnected via t1 or t3 digital leased linesaccording to the protocols involved, networks interconnection is achieved using one or several of the following devices.
Introducing basic network concepts 3 basetech networking concepts team 2230894 blind folio 3 figure 1. In peer to peer network each computer can function as both client and server. Hubs and switches connect two or more computers to an ethernet network. Basic concepts in computer networking usi informatics. A network refers to two or more connected computers that can share resources such as data, a printer, an internet connection, applications, or a combination of these resources. A network can be defined as a group of computers and other devices connected in some. Ethernet ethernet is a widely deployed lan technology.
Computer networking has existed for many years, and as time has passed the technologies have become faster and less expensive. Definition of computer networksa computer network is a devices printer, scannercollection of computers communication devicesand devices nic routerconnected together via hub. Computer networking is the practice of linking computers together to support data sharing among them. In this lesson you will learn several networking concepts. Switches generally cost more than hubs and are faster. You can share files with other computers this way easily. Gain familiarity with the nature and different types of software. Every business, academic institution, and nearly every home relies on at least a basic network to connect multiple devices together. This site contains which contains many networking courses is for you. Learn the basics pc laptop 101 east stroudsburg area. Well cover everything from the fundamentals of modern networking technologies and protocols to an overview of. Even if you do not work in the information technology field, having a basic understanding of computer networking allows you to troubleshoot basic problems on your home network and.
294 461 1079 127 474 684 1323 864 1184 17 505 220 646 208 1294 438 790 1500 224 1280 836 5 343 57 872 1143 476 1333 435 872 1288 248 1361 1081 320 828