 A hub is a central connecting device in a network.  Each node is connected directly to the hub.  They receive a data packet from one node and send.

Slides:

Advertisements

Similar presentations

LAN Devices 5.3 IT Essentials.

Advertisements

Lecture 2 - Networking Devices

[Networking Hardwares] [Maninder Kaur]

Networking hardware includes all computers, peripherals, interface cards and other equipment needed to perform data-processing and communications within.

1 Version 3 Module 8 Ethernet Switching. 2 Version 3 Ethernet Switching Ethernet is a shared media –One node can transmit data at a time More nodes increases.

CSC 450/550 Part 3: The Medium Access Control Sublayer More Contents on the Engineering Side of Ethernet.

Networks Adapting Computers to Telecommunications Media.

Lesson 5 – Understanding Network Hardware. Repeaters Hubs and concentrators Bridges Routers Switches Gateways Firewalls Short-haul modems OVERVIEW.

1 Chapter 8 Local Area Networks - Internetworking Data Communications and Computer Networks: A Business User’s Approach.

Local Area Networks Part II. 2 Introduction Many times it is necessary to connect a local area network to another local area network or to a wide area.

Hardware & Software Needed For LAN and WAN

A Guide to major network components

COMPUTER NETWORKS.

© Folens 2008 Transfer of data in ICT systems Using ICT networks.

NETWORKING DEVICES  What is a networking device?  What are the different networking devices?

Connecting Device Repeater Hub Bridge Switch Router.

CECS 474 Computer Network Interoperability Tracy Bradley Maples, Ph.D. Computer Engineering & Computer Science Cal ifornia State University, Long Beach.

For more notes and topics visit: eITnotes.com.

NETWORKING COMPONENTS Zach Avis. Hub A hub is a low cost way to connect two computers. A hub can also act as a repeater. When a signal comes from one.

Basic Networking Components

Introduction to Networking. Key Terms packet  envelope of data sent between computers server  provides services to the network client  requests actions.

3.3) Transmitting and Receiving. Different concepts covered include: transmission of data protocols handshaking networks and their topologies network.

NETWORKING COMPONENTS By Cleve Rosser. Hubs allow large numbers of computers to be connected on a single or multiple LAN. Each computer plugs into the.

Slide 1 What is a Computer Network? A computer network is a linked set of computer systems capable of sharing computer power and resources such as printers,

Common Devices Used In Computer Networks

ACM 511 Chapter 2. Communication Communicating the Messages The best approach is to divide the data into smaller, more manageable pieces to send over.

Network Parts. Network Interface Card (NIC) 2 This used to be a separate card as shown. As many computers these days need access to a network, the technology.

CS3502: Data and Computer Networks Local Area Networks - 4 Bridges / LAN internetworks.

Topologies The structure of the network –Physical topology Actual layout of the media –Logical topology How the hosts access the media.

©G. Millbery 2001Communications and Networked SystemsSlide 1 Purpose of Network Components  Switches A device that controls routing and operation of a.

Release 16/07/2009Jetking Infotrain Ltd. Assembling and Cabling Cisco Devices Chapter 3.

Repeaters and Hubs Repeaters: simplest type of connectivity devices that regenerate a digital signal Operate in Physical layer Cannot improve or correct.

 Network Segments  NICs  Repeaters  Hubs  Bridges  Switches  Routers and Brouters  Gateways 2.

Hub  A hub is a piece of hardware that connects multiple wired devices together on a single network. Hubs work at the physical layer (layer 1) of the.

Communication Networks Fourth Meeting. Types of Networks  What is a circuit network?  Two people are connected and allocated them their own physical.

Today’s Topics Chapter 8: Networks Chapter 8: Networks HTML Introduction HTML Introduction.

NETWORKING COMPONENTS AN OVERVIEW OF COMMONLY USED HARDWARE Christopher Johnson LTEC 4550.

Network 101 By Tom Battaglia Dell Connectivity 2 RR2 DC Drawing 3 Heterogeneous Network 4 OSI Model.

HNC COMPUTING - Network Concepts 1 Network Concepts Devices Introduction into Network Devices.

NETWORK COMPONENTS Assignment #3. Hub A hub is used in a wired network to connect Ethernet cables from a number of devices together. The hub allows each.

 The devices which each intercorrect several computer or different to each other, each nones network devices.  There are various types of Network devices.

PRESENTATION ON:- INTER NETWORK Guided by: Presented by:- Prof. Ekta Agrwal Dhananjay Mishra Prafull Jain Vinod Kumawat.

Networking Components Michelle Vega Network System Administrations LTEC /026 Mr. West.

"Networking 101: Basics" Jim Gogan INLS184. Introduction - Why network? l Communicate with others close by l Communicate with others far away l Gain access.

NETWORK HARDWARE CABLES NETWORK INTERFACE CARD (NIC)

Chapter2 Networking Fundamentals

Connectivity Devices. Network Interface Card (NIC) Allow user to connect to networks via Ethernet cable or Wi-Fi Nowadays integrally fitted into the.

Summary - Part 2 - Objectives The purpose of this basic IP technology training is to explain video over IP network. This training describes how video can.

NET 324 D Networks and Communication Department Lec1 : Network Devices.

Computer Networks. Internetworking Devices Network Interface Card (NIC) Repeaters HUB Bridge Switch Router.

Networking And their components. What is Networking? In it’s simplest term, networking is when two or more things are able to communicate and understand.

Network Components Basics!. Network HUB  Used to connect multiple Ethernet devices together  Layer 1 of the OSI model  Not used much today.

Data Communications & Computer Networks, Second Edition1 Chapter 8 Local Area Networks: Internetworking.

Networks Network Components. Learning Objectives Describe different media for transmitting data and their carrying capabilities. Explain the different.

Local Area Networks Honolulu Community College

Computer Network Architecture Lecture 3: Network Connectivity Devices.

Activity 1 5 minutes to discuss and feedback on the following:

NETWORK DEVICES Department of CE/IT.

.  Hubs send data from one computer to all other computers on the network. They are low-cost and low-function and typically operate at Layer 1 of the.

ASSIGNMENT 3 - NETWORKING COMPONENTS BY JONATHAN MESA.

CHAPTER -II NETWORKING COMPONENTS CPIS 371 Computer Network 1 (Updated on 3/11/2013)

Networks DEVICES. Repeater device to amplify or regenerate digital signals received while setting them from one part of a network into another. Works.

Chapter 3.  Help you understand what hardware is required to allow networks to work including: ◦ Repeaters ◦ Hub ◦ Switch ◦ Bridge ◦ Gateway (not needed.

Submitted by : yateendra sahu Et&T 7 th B R/N :

Class Notes CS403- Internet Technology Prepared by: Gulrez Alam Khan.

The OSI Model. History of OSI Model ISO began developing the OSI model in It is widely accepted as a model for understanding network communication.

Transfer of data in ICT systems

Chapter 3 Computer Networking Hardware

Connecting Networks Repeater: physical layer Bridge: data link layer

Computer Networks Lesson 2.

Presentation transcript:

 A hub is a central connecting device in a network.  Each node is connected directly to the hub.  They receive a data packet from one node and send that data packet to all nodes on the network.  This created a lot of unnecessary network traffic, as most of the nodes will ignore the data because it is not addressed to them.  A better type of hub is called a switch.

 A switch is an intelligent hub that only sends data to a specific node  The switch looks at the address of the data packet and sends it to that address.  A switch reduces the volume of traffic on a network compared to a hub.

 A router is a very intelligent hub that directs (routes) data packets to and from other networks.  A router maintains a table of the available routes and their conditions.  It uses this table to determine the best route for a given data packet.  Routers are often used to connect to the Internet.

 A bridge is a device to link two similar networks.  It often connects networks that use the same protocol such as Ethernet.  A bridge examines each data packet on a network and forwards any data packets addressed to a connected network.

 A gateway is a link between two different types of networks.  It converts different protocols and transfers data between the two networks.  For example, a gateway could be used to convert a TCP/IP packet to an IPX packet.  A gateway acts as the door between the networks.  All the data must pass through the gateway to reach the other network.  Gateways are not necessarily separate devices but rather are often pieces of software running on servers or in routers.

 A repeater is used to rebuild a fading signal to its original strength and shape before transmitting it onwards.  For example, the data sent along a UTP cable becomes unreadable after about 100 metres.  A repeater would be installed every 100 metres to rebuild the signal.

 A network interface card (NIC, pronounced ‘nick’) is an expansion card that allows a device to be connected to a network  NICs are installed into servers, workstations and some other devices.  Each device must have a driver to communicate on the network.  A NIC is usually given a unique address so that it can be identified on the network.  Most NICs require a network cable connection and have connectors on the card for different types of cables.