A computer network is defined as the interconnection. Typically, these types of computer networks showcase computers that are near each other. Lan, man and wan are the three major types of the network designed to operate over the area they cover. The network allows computers to connect and communicate with different computers via any medium. The two most popular types of structured network cabling are twistedpair. A computer network is a broad term for one of the biggest technological advances in computer science over the last 40 years. There are many different types of network, which can be used for different purposes and by different types of people and organization. A computer network is a set of computers, or nodes, that are connected by cables or connect wirelessly via radio waves. One approach defines the type of network according to the geographic area it spans. Welcome to the online submission and editorial system for computer networks. Distinguish between the different types of networks xiv.
Learn what these 11 types of networks do for your data center. A good example of these types of computer network is the internet. Types of area networks lan, man and wan geeksforgeeks. This lesson provides a broad overview of the computer networking and the internet. A network can be defined as a group of computers and other devices connected. They describe the physical and logical arrangement of the network nodes. In terms of the osi reference model, the radio signal operates at the physical layer, and the data format controls several of the higher layers. This is an internal network to a business or organization, not being externally accessible by the public. Here are some of the network types that you might come across.
Some types of networks, however, serve a very particular purpose. Lanlocal area network panpersonal area network manmetropolitan area network wanwide area network lanlocal area network local area network is a group of computers connected to each other in a small area such as building, office. The term lan refers to a local network or a group of interconnected network that are under the same administrative. Identify human and computer networks describe the benefits of networks distinguish between the different types of networks xiv basetech networking concepts team 2230894 blind folio 0 n. Local area networks lan a local area network or lan is a network that connects computers within a limited area. Lans connect computers and peripheral devices in a limited physical area, such as a business office, laboratory, or college campus, by means of links wires, ethernet cables, fibre optics, wifi that transmit data rapidly.
Wide area network wan this type of computer networking covers a relatively wider region than the lan. Computer networks are established using different software and hardware technologies. One of the major differences is the geographical area they cover, i. Local area network lan metropolitan area network man wide area network wan personal area network pan a lan is a network that is used for communicating among computer devices, usually within an office building or home. Internet is a worldwide interconnection of various computer networks. This interconnection among computers facilitates information sharing among them. Clientserver the computers are connected by a network, and there is a server present. There are many types of network available in the networking. The malicious nodes create a problem in the network. We examine the edge of a computer network, looking at the end systems and applications, and at the. A computer network is a group of computers that use a set of common communication protocols over digital interconnections for the purpose of sharing resources located on or provided by the network nodes. This topic is very good for all types of competition examinations. Pdf networking is referred as connecting computers electronically for the. This malicious nodes acts as selfishness, it can use the resources of other nodes.
Wans are used to connect lans and other types of networks together, so that users and computers in one location can communicate with users and computers in other locations. All of the above 12 what is a firewall in computer network. Introduction to wireless networks when you invent a new network. The basic definition of a computer network is that a computer network connects parts of a distributed architecture, whether those parts are made up. Introduction to computer network complete guide to. Pdf network security and types of attacks in network. Network topologies describe the ways in which the elements of a network are mapped. Networking is classified into two types are wired networking where the computers are connected through cables and wireless networking without the use of cables. Three types of computer networks are local area networks, metropolitan area networks and wide area networks. Hello friends computer network topologies and their types pdf download for all of you.
Data communication and computer network 1 a system of interconnected computers and computerized peripherals such as printers is called computer network. Computers in wan are often connected through leased lines telephone lines. The interconnections between nodes are formed from a broad spectrum of telecommunication network technologies, based on physically wired, optical, and wireless radiofrequency methods that. A computer network can be categorized by their size. This computer network topologies and their types pdf. Before going to computer networking there are certain terms that you should be aware of like nic or network interface card, lan or local area network, servers, hub or switch and more. It includes devices housed in a single room to millions of devices spread across the world. Computer networks is an international, archival journal providing a publication vehicle for complete coverage of all topics of interest to those involved in the computer communications networking area.
Computer networks a group of two or more computer systems linked together. In computer s reference the same definition holds value but there is a slight change which is. The lesson begins with an overview of the internet and of networking protocols, introducing several key terms and concepts. The network structure includes the wireless network interface adapters and base stations that send and receive the radio signals. Wans interconnect lans, which then provide access to computers or file servers in other locations. The distinguishing feature of the lan is that they are commonly owned and controlled by.
The computers are connected by a network, however, there is not a server present. All student who preparation competitive examination will help you for upcoming exams like railway,cat, ssc,mppsc and other state level exam. Computer networks can be established using different hardware structures such as ethernet, optical fiber or merely using wireless connections. Multiple choice questions of computer networking 11 computer network is a. Therefore, this is the type that is mostly used in homes, classrooms, small office spaces, and the like. There are several techniques that may be used to establish the network. It can cover a country, a continent, or the whole world. Protecting computer and network security are critical issues.
The smallest and most basic type of network, a pan is made up of a wireless modem, a computer or two, phones, printers, tablets, etc. Principles, protocols and practice, release techniques allow to create pointtopoint links while radiobased techniques, depending on the directionality of the antennas, can be used to build networks containing devices spread over a small geographical area. Introduction to computer network the term network means a group, chain or a collection of something that come together for the purpose of communication. Ethernet network is the most common and widely used technology to establish any computer network. Computers may connect to each other by either wired or wireless media. Mike meyers in this chapter, you will learn how to. The size of a network should be expressed by the geographic area and number of computers, which are a part of their networks. Explain different types of computer networks lan, man. They facilitate sharing of resources, such as printers and storage media.
Computer networks can be categorized in several different ways. 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. Computer network topologies and their types pdf download. Computer networks pdf notes free download cn notes. Depending upon the geographical area covered by a network, it is classified as. Computer networking and management lesson 1 computer. While the term computer can apply to almost any device that has a microprocessor in it, most people think of a computer as a device that receives input from the user through a mouse or keyboard, processes it in some fashion and displays the result on a screen. Local area networks cover a single site, such as an office building.