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. Lets take a look at the network devices commonly found in todays lans hubs. Once upon a time, there were mobile phones and pdas. This also includes wireless access points, specialpurpose devices such as virtual private network vpn devices. The broadband gan is a global satellite internetnetwork that uses portable terminals for telephony. Jan 08, 2019 to build a strong network and defend it, you need to understand the devices that comprise it. Routers a router is a device like a switch that routes data packets based on their ip addresses. Along with the development of technology, all types of computer networks are also evolving, in particular for the network devices. The physical topology of a network refers to the configuration of cables, computers, and other peripherals different types of topologies bus topology. Thus, the each of the network devices varied and distinguished based on its usability and quality. This connection can be achieved through standard ports with a special cable or by using spe cial ports with a standard cable. Different networking devices and hardware types hub.
A network device is an important component of a computer network. All student who preparation competitive examination will help you for upcoming exams like railway,cat, ssc,mppsc and other state level exam. They are designed this way because they are used to connect different types of networks together, so they need the right type of interfaces for the various networks that they will connect to. Overview of basic types of network devices computer. There are several different types of computer networks. Distinguish between different network types and understand their properties. Most apple macintosh networks are based on apples appletalk network system, which is built into macintosh computers. Types of computer network explained in easy language. Hubs cannot filter data, so data packets are sent to all connected devices. In a home network, this can be such things as printers, a central storage drive, mp3 files, and anything you can think of that can take advantage of the servers capabilities. There are many types of network available in the networking industries. Routers are generalpurpose devices that interconnect two or more heterogeneous networks. Some devices are installed on the device, like nic.
Different types of networks depending upon the geographical area covered by a network, it is classified as. Wide area network this is the wireless version of a shared network. Two main types of networking topologies are 1 physical topology 2 logical topology. Comparing and contrasting network devices, their features. A transparent bridge does nothing except block or forward data based on the mac address. There are different types of cable in networking that are used for different purposes and medium. By convention, switching devices acting at the lan layer and forwarding packets. Specifically, they mediate data transmission in a computer network. Find out different types of network devices and their. One of the major differences is the geographical area they cover, i. This can include things like a watch, special glasses, tracking devices and heartrate monitors. These network devices are used to connect computers to form a network.
Logical topology gives insights about networks physical design. Network classification based on network topologies network topology is the layout of the various interconnected elements on a computer network. The size of a network should be expressed by the geographic area and number of computers, which are a part of their networks. List of networking devices and its different types ahirlabs. 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. The network structure includes the wireless network interface adapters and base stations that send and receive the radio signals. Hardware devices that are used to connect computers, printers, fax machines and other electronic devices to a network are called network devices. Network devices are the devices used for organizing a network, connecting to a network, routing the packets, strengthening the signals, communicating with others, surfing the web, sharing files on the network and many more uses. This topic is very good for all types of competition examinations. Networks can cover anything from a handful of devices within a single room to millions of devices spread across the entire globe.
They describe the physical and logical arrangement of the network nodes. Note that single users in most cases basically use this type of network. Jun 25, 2016 in order to install an appropriate networking system that provides a fast and smooth internet connection, a number of different types of network devices are required due to their distinct. Jan 03, 2019 hello friends computer network topologies and their types pdf download for all of you. A hub is an osi layer 1 device and has no concept of ethernet frames or addressing. In local area networks, ethernet protocol is the most common network type. Personal area network pan a personal area network pan is a computer network used for communication among computer devices, including telephones and personal digital assistants, in proximity to an individuals body. Different types of cable in networking snabay networking. There are numerous ways a network can be arranged, all with different pros and. Computer networks can be characterized by their size as well as their purpose.
There are many different types of lans, ethernet being the most common for pcs. Computer networking devices explained with function. Types of area networks lan, man and wan geeksforgeeks. Comparing and contrasting network devices, their features and functions. Networks are further classified into various types depending on their size, expanse, security, purpose and many other parameters. Download free network topologies tutorial course material and training in pdf file under 4 pages by maninder kaur. Introduction to wireless networks when you invent a new network. Network interface card nic is a hardware device used to connect a server or workstation to a network. In order to install an appropriate networking system that provides a fast and smooth internet connection, a number of different types of network devices are required due to their distinct. In p persistent protocol, when the line is free the sender will transmit frame. Computer network topologies and their types pdf download. For example, a file server is a computer and storage device dedicated to storing files any user on the network can store files on the server.
Different network technologies are used by these devices such as ethernet, token ring, tcpip, the 802. A hub serves as a central point to which all of the hosts in a network connect to. Different networking devices and hardware types hub, switch. A network can be defined as a group of computers and other devices connected. The geometric arrangement of devices on the network. Most network adapters are small pieces of physical hardware, although softwareonly virtual adapters also exist. This is suited for larger networks where manual feeding may not be feasible due to. Because routers and gateways are the backbone of large computer networks like the internet. Network devices may be inter network or intra network. The characteristics of a microcomputer are monitors, keyboards and other devices for input and output may be integrated or separate.
A print server is a computer that manages one or more printers and a network server is a computer that. Wireless local area network this is a computer network thats dedicated for those who want to connect wirelessly, this is a wellknown source of internet nowadays. Each of these devices has a specific network functions and plays an important role in maintaining network infrastructure security. There are various types of computer networks available. Network devices hub, repeater, bridge, switch, router, gateways and. This computer network topologies and their types pdf. Types of server a server is a computer or device on a network that manages network resources. Types of network devices and hardware in computer networking. Learn the different types of computer network including their definitions and characteristics in easy language. This representation can include the location of equipment cables, posts, connectivity devices.
Lan stands for the local area network, that means a network. It simply receives a signal from one port and sends it out to all other ports. A bridge can connect two different types of media or network architecture, but it cannot connect two different types of network layer protocol such as tcpip or ipx. The configuration, or topology, of a network is key to determining its performance. Regular languages and finite automata context free grammar and. A modem is somewhat a more interesting network device in our daily life. Understand the role of the major components of a computer network. These devices transfer data in a fast, secure and correct way over same or different networks. This chapter introduces commonly used networking devices, and, although. Network devices, or networking hardware, are physical devices that are required for communication and interaction between hardware on a computer network. The network allows computers to connect and communicate with different computers via any medium.
To build a strong network and defend it, you need to understand the devices that comprise it. Appreciate the relevance and importance of standards, in general, and the osi model, in particular. These devices can connect different types of networks using different types of network protocols. The different segments of a lanwan would usually be of the same physical media type, though there are exceptions, where special devices known as translation bridges are used in scenarios where the same lanwan has different types of physical media segments e. Oct 12, 2001 discusses the different types of networks, network architecture and the flow of data between several networks questions at the end of each chapter to assist understanding. Learn the various types and how you can best use them to connect different computers in. The internet is a wellknown wide area network connection. It includes devices housed in a single room to millions of devices spread across the world.
Basic network devices so here are few basic device which are used in computer network. Types of network topology top 6 types of topology with. Networking cables are used to connect two or more devices such as a computer, printer, scanner, etc. So above network contains three broadcast domains, where h hub, swswitch and rrouter. This type of network is an actual layout of the computer cables and other network devices. Network topologies michigan technological university. A nic is used for particular type of network connection, either ethernet or token ring. Bridge devices work at the data link layer of the open system interconnect osi model, connecting two different networks together and providing communication between them. Introduction to networking devices subodh mca institute. Assurance of network security is one of the most important moments for safe and correct working of the computer systems and networks. Computer memory in the form of ram, and at least one other less volatile, memory storage device are usually combined with the cpu on a system bus in one unit. Ip addresses are 32 bit long, hierarchical addressing scheme. The network security includes assurance of the limited access to sensitive information, the protection from unauthorized access, risks and potential security threats, and enhancement of network performance. Units which are the last receiver or generate data are called hosts, end systems or data terminal equipment.
A personal area network handles data transmission within devices such as tablets, personal digital assistants, smartphones, and computers. Some of them are the switches, routers, firewall etc. Categorization is usually based on the following basic modem features. 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. The many types of mobile devices on your network dummies. In a loopfree network there is a unique path between. Then, consider the types of network devices for a computer networking. In addition to acting as a connection point for network devices, hubs and switches can also be connected to create larger networks. More than a comprehensive reference book, data communications networking devices is ideal as a self study guide too. A personal area network pan is a computer network used for communication among computer devices, including telephones and personal digital assistants, in proximity to an individuals body. While covering all these classifications is beyond the scope of the ccna exam, there are two important network classifications that you need to know about.
An example is wireless access points which often include one or more of the following. There are many network devices which are being used these days to get connected to the internet. They are usually dedicated to specialpurpose computers, with separate input and output network interfaces for each connected network. Mar 03, 2014 the different segments of a lanwan would usually be of the same physical media type, though there are exceptions, where special devices known as translation bridges are used in scenarios where the same lanwan has different types of physical media segments e. A body area network, or ban, is a network of wearable computing devices. The size of a network can be expressed by the geographic area they occupy and the number of computers that are part of the network. People make use of these types of networks commonly in situations where they need to connect wearable or mobile devices. A bridge is a type of computer network device that provides interconnection with other bridge networks that use the same protocol. This device does not have any intelligence inside, so traffic for a particular device is also broadcasted to all devices connected to the hub. Network topology is the way a network is arranged, including the physical or logical description of how links and nodes are set up to relate to each other.
The devices may or may not belong to the person in question. Based on the size of a computer network, there are three types of computer networks. A local area network lan is a group of computers and associated devices that share a common communications line or wireless link. This tutorial explains the different types of computer network such as lan, man, wan, pan, can, gan, internet, internet, intranet, extranet, vpn, clientserver, workgroup and homegroup in detail. Types of modems modems can be of several types and they can be categorized in a number of ways. Gan global area network global area network ganrefers to any network thatis composed of different interconnected computernetworks wans and also covers an unlimitedgeographical area. Now, you have to consider a whole bunch of different device types when planning your networks security. Segmenting the network with connectivity devices provides an actual physical example of delivering actual data to the right destination through the ip addresss network id and host id. Lan, man and wan are the three major types of the network designed to operate over the area they cover. Typically, connected devices share the resources of a single processor or server within a small geographic. Advantages of networking types of networks models of networking appropriate to students ncte recommendation to students some relevant terms. One should know about all of them to get some good insights about the network devices.
Lisa covers different networks that range in size and purposelans, wans and pansand explains how businesses invest heavily in iot in order to keep a competitive edge, going into iot. Depending on the type of communication you want to achieve, a networking device such as a router or switch is often used when designing a computer network. Adapters interface a computing device including computers, print servers, and game consoles to the communication network. Lisa bock kicks off the course with an overview of iot, and the types of iot devices designed to improve the quality of life in homes and businesses. Network devices hardware devices that are used to connect computers. Installation and configuration of a network interface card. We can categorize them according to their size as well as their purpose. Networking hardware, also known as network equipment or computer networking devices, are electronic devices which are required for communication and interaction between devices on a computer network. The computers are geographically close together that is, in the same building. Hubs and switches are sometimes equipped with a network connection for another cable type, such as coaxial. Network topologies describe the ways in which the elements of a network are mapped. Mutlifunction network devices as you might guess, multifunction network devices combine the function of individual devices into a single unit. Network devices hub, repeater, bridge, switch, router, gateways.
These devices are hubs, switches, routers, lan cards, gateway, modem, hardware firewall and so on. There are some similarities and dissimilarities between them. Local area network wide area network metropolitan area network 7 8. The following characteristics differentiate one lan from another. A variety of networking devices are available with different functionality. Describe the general characteristics of a computer network. Network devices hub, repeater, bridge, switch, router. Your network is no longer just computers, printers, and maybe pdas. Hub is a l1 device also called as concentrator, where all cables from devices terminate. As you know a network is a collection of devices connected together.
Transparent bridgederives its name from the fact that the devices on the network are unaware of its existence. The computers are farther apart and are connected by telephone lines or radio waves. It is good to know about network topologies because different types of networking standards may use one type of p hysical topology, but. What is networking and what are the different network devices.
Ip is a standard that defines the manner in which the network layers of two hosts interact. The network adapter is an essential component in both wired and wireless computer networking. Routers normally connect lans and wans together and have a dynamically updating routing table based on which they make decisions on routing the data packets. Network types and topolgies chapter 3 3 n etwork r elationships 41 servers are pcs that control access to different resources on the network. Data communications networking devices wiley online books. Network hub is a networking device which is used to connect multiple network hosts. Previous point types of network next point modem network devices are the devices used for organizing a network, connecting to a network, routing the packets, strengthening the signals, communicating with others, surfing the web, sharing files on the network and many more uses. Hubs connect multiple computer networking devices together.
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