Ppt on computer networking basics

Prepared by Natalie Rose 1 Network Lecture 6. Prepared by Natalie Rose2 Overview of Communication A Message (data and information) is communicated in.

hardware connected for communications and using programs to provide the capabilities of sharing resources. Basic Network Anatomy Prepared by Natalie Rose5 Basic Network Anatomy A computer network is any system of two or more computers that are linked together. How is networking important?  People share computer hardware, thus reducing costs.  People share data and software programs, thus increasing efficiency and production.  People work together in ways that are otherwise/


Living Online Module Lesson 23 — Networks and Telecommunication Computer Literacy BASICS.

data over the network Computer Literacy BASICS 20 Network Transmission Hardware HUB NIC Computer Literacy BASICS 21 Network Transmission Hardware BRIDGE ROUTER Computer Literacy BASICS 22 Network Transmission Hardware: Computers Connected to a Hub Computer Literacy BASICS 23 Network Transmission Hardware: The bridge connecting two LANs Computer Literacy BASICS 24 Network Transmission Hardware: Networks Connected by a Router Computer Literacy BASICS 25 Local Area Networks Local area networks (LANs) are/


Computing Fundamentals Module Lesson 1 — Introducing Computers Computer Literacy BASICS.

, or fiber optic. – Protocol: The rules that govern the orderly transfer of the data sent Computer Literacy BASICS 19 Data Communications Components Computer Literacy BASICS 20 Computer Networks Businesses utilize a type of data communications called a network. A network consists of multiple computers connected to each other to share data and resources. A computer network located in a small geographical area, such as one building or department, is called a/


Electronic Commerce Start. Chapter I : Introduction to E-commerce Chapter II : Network infrastructure for E-com Chapter III : E-com and World Wide Web.

of functions : To display, create and manipulate multimedia documents. To transmit and receive multimedia documents over computer networks To store and retrieve multimedia documents. Internal Processes of Multimedia Servers (contd…) –To make interactive multimedia a/client and server be able to authenticate each other and exchange data confidentially. This exchange has three basic properties : –clients are confident about servers they are communicating with (server authentication). –Client conversation with/


Chapter 1 Introduction. 2 Chapter 1 Objectives Know the difference between computer organization and computer architecture. Understand units of measure.

and Architecture 641 Chapter 11 Objectives Become familiar with the fundamentals of network architectures. Learn the basic components of a local area network. Become familiar with the general architecture of the Internet. 642 11.1 Introduction The network is a crucial component of today’s computing systems. Resource sharing across networks has taken the form of multitier architectures having numerous disparate servers, sometimes far removed from/


Lesson 7 Networks Unit 1—Computer Basics. Computer Concepts BASICS - 2 Objectives Describe the benefits and disadvantages of networks. List and describe.

hardware. List and describe communications media. Describe the different network topologies. Describe network architecture and protocols. Computer Concepts BASICS - 3 Introducing Networks A network is a group of two or more computers linked together. Most networks have a server that manages the network resources. Most networks have multiple clients, which are computers that access the server. Computer Concepts BASICS - 4 Network Benefits Networks provide almost instant communication with other users on the/


NATIONAL 4 & 5 COMPUTING SCIENCE Prepared by M Feldman.

eg: IF age =60 THEN PRINT “Discount Given”,discount LANGUAGE CONSTRUCTS (HIGH LEVEL LANGUAGE PROGRAMMING) CONTROL - The basic control structures used in HLL procedural languages are sequence, selection & repetition. SEQUENCE means the order things are done in/ information in such a way that only the person (or computer) with the key can decode it. SECURITY PRECUATIONS BIOMETRICS SECURITY PRECUATIONS BIOMETRICS Some computer networks use biometric security to ensure only authorised users can gain access/


ANIT GHATAK ROLL NO. 12MA60R27 DEPERTMENT OF MATHEMATICS AUGUST 21, 2012 AN OVERVIEW OF VIRTUALIZATION AND CLOUD COMPUTING.

(HARDWARE AND SOFTWARE) THAT ARE DELIVERED AS A SERVICE OVER A NETWORK(TYPICALLY THE INTERNET). IN ESSENCE, CLOUD COMPUTING IS THE USE OF COMPUTING RESOURCES (HARDWARE AND SOFTWARE) THAT ARE DELIVERED AS A SERVICE OVER A NETWORK(TYPICALLY THE INTERNET). AGENDA TRIP DOWN MEMORY LANE THE CONCEPT INTRODUCED TWO BASIC APPROACHES A LITTLE ABOUT WINDOWS VIRTUALISATION TECHNIQUE SOME PROBLEMS AND THEIR SOLUTIONS: THREE MAIN APPROACHES/


Www.ciscopress.com Networking Basics CCNA 1 Chapter 2. Networking Fundamentals.

Open standards allow more competition, which increases speed of development www.ciscopress.com Networking Basics and Terminology Popular Network Standards Organizations www.ciscopress.com Networking Basics and Terminology Ethernet LANs and LAN Devices The networking protocol used in most modern computer networks is Ethernet. Ethernet LANs originally used coaxial cable (similar to Cable TV cable) Network Interface Cards (NICs) would attach to a length of cable called a segment/


Basics of Networking PRESENTED BY: KEVIN SHEA OTTAWA-CARLETON DISTRICT SCHOOL BOARD ACSE CONFERENCE FEBRUARY 20, 2004.

because at the time, IBM had a propriety seven -layer protocol called SNA (Systems Network Architecture). Basics of Networking At the time, IBM dominated the computer companies and every was scared to death that IBM would use its clout to force / given you also has an IP Addressing assignment that I use with my Grade 12 Computer Engineering Students. Basics of Networking Thank You. Basics of Networking RESOURCES http://compnetworking.about.com/library/glossary/bldef-bandwidth.htm www.3com.com/other/pdfs/infra/


Unit 03 – Computer Systems M/601/7261 LO1 - Understand the components of computer systems.

toast.  You can set up a firewall using two basic ways. The easiest way is to purchase a firewall application, which is basically a self-contained router with built-in firewall features. Most firewall applications include a Web-based interface that enables you to connect to the firewall from any computer on your network using a browser. You can then customize the firewall settings/


Dr. Introduction to Computing Dr. Pierre Vignéras This work is licensed under a Creative Commons Attribution-Share Alike.

Gb/s – Wireless (Wi-Fi): ~ 54 Mb/s ● Video Cards: ~ 256 MB, 400 MHz ● Screens: CRT 17 & 19; TFT 15 & 17 (trend) I. Basics Dr. Internet (http://en.wikipedia.org/wiki/Internet) – Worldwide, publicly accessible network of interconnected computer networks that transmit data using the IP protocol (language) – World Wide Web (WWW): ● collection of interconnected documents, linked by Hyperlinks and URLs ● accessible via the/


Dr. Introduction to Computing Dr. Pierre Vignéras This work is licensed under a Creative Commons Attribution-Share Alike 2.0 France.

Gb/s – Wireless (Wi-Fi): ~ 54 Mb/s ● Video Cards: ~ 256 MB, 400 MHz ● Screens: CRT 17 & 19; TFT 15 & 17 (trend) I. Basics Dr. Internet (http://en.wikipedia.org/wiki/Internet) – Worldwide, publicly accessible network of interconnected computer networks that transmit data using the IP protocol (language) – World Wide Web (WWW): ● collection of interconnected documents, linked by Hyperlinks and URLs ● accessible via the/


CS-611 COMPUTER FUNDAMENTAL & PC SOFTWARE

files, applications and hardware (printer) and other related resources. | | | | A networking is basically a communication system of computers. Just as the telephone system allows two people to talk to one another, networks allow computers to communicate. The entire computer network can be classified into two Broad categories:- LAN (Local Area Network) WAN (Wide Area Network) | | | | 1. LAN :- A private network with in a range of 10 kilometers which is controlled/


Grid Computing and the Globus Toolkit

& membership management Base Fault type WS Core Enables Frameworks: E.g., Resource Management Applications of the framework (Compute, network, storage provisioning, job reservation & submission, data management, application service QoS, …) WS-Agreement (Agreement negotiation/ Authorization Service Standalone delegation service Ability to map between Grid and local identity Security Tools Basic Grid Security Mechanisms Certificate Generation Tools Certificate Management Tools Getting users “registered” to use/


Basics of IT.

, FOXPRO. SYSTEM SOFTWARE - OPERATING SYSTEM (OS), COMPILERS, INTERPRETERS. CLASSIFICATION OF NETWORKS Basics of IT CLASSIFICATION OF NETWORKS LAN MAN WAN Basics of IT LAN Local area network, generally called LAN’s are privately-owned networks within a single building or campus of up to a few kilometers in size. They are widely used to connect personal computers and workstations in company offices and factories to share resources/


Software Agents and Aglets

Computer Network Agent Computer Researchers Involved in Agent Development Known Groups and People Responsible Government Agencies Rock Island Army Arsenal Academic Institutions Carnegie Melon University Massachusetts Institute of Technology Stanford University University of Maryland Baltimore County Computer Industry Companies IBM Microsoft Technical Overview Basic Agent Anatomy An Agent is an Object Which Has Properties Similar to Object Oriented Classes The Agent’s Attributes are Similar/


Information and Communication Technology (ICT)

College Information and Communication Technology (ICT) Supportive Module - 1 Mishqen College Department of ICT Module Description This Module Covers: Introducing Information and Communication Technology (ICT) Basics of Computers Computer data representation and numbering System Basics of Data Communication Computer Networking Computer Hazards and Security Mishqen College Department of ICT LEARNING OUTCOMES (OBJECTIVES) At the end of the module the learner will be able to: Understand the constituents/


Bayesian models of inductive learning

graphical models Bayesian Occam’s razor priors: conjugate, hierarchical (theories) Outline Morning Afternoon Introduction (Josh) Basic case study #1: Flipping coins (Tom) Basic case study #2: Rules and similarity (Josh) Afternoon Advanced case study #1: Causal induction (Tom/)) “graph surgery” produces “mutilated graph” Assessing interventions To compute P(Y|do(X=x)), delete all edges coming into X and reason with the resulting Bayesian network (“do calculus”; Pearl, 2000) Allows a single structure to/


Cisco Networking Academy Program New CCNA Curricula

WAN addressing. Practical application, theory, soft skills and career exploration Designing and Supporting Computer Networks Design concepts and equipment selection IP addressing on a LAN/WAN Network design Cisco device configuration upgrade Stronger theoretical notion of converged networks CCNA Exploration Changes Compared to Current CCNA CCNA v3.1 CCNA Exploration Course Changes CCNA 1 Networking Basics Network Fundamentals % content change 53% Intro to Advanced Technologies and Converged/


Computer Hardware and Software

Center at concepts.glencoe.com. Choose Before You Read Quizzes and take the Unit 2 Pre-Quiz. Tech Talk: Introducing Your Computer Types of Computers (pg. 41–42) Hardware Basics (pg. 43–44) Computer Memory and Storage Basics (pg. 45–46) Software Basics (pg. 47–48) Computer Network Basics (pg. 49) Projects Project 1: Use Microsoft Windows (pg. 51–68) Project 2: Use Microsoft Help (pg. 69–81) Technology/


Basic Network Concepts:

. To do this, you would not be able to use a straigh-through cable because the transmit pin on one computer would be connected to the transmit pin on another. Basic Network Concepts: 1.03 Network Media and Connectors Basic Network Concepts: 1.03 Network Media and Connectors 568A and 568B Standards Although only four of the wires are used to send and receive data in most/


Mobile Communication and Mobile Computing

MASIF (OMG) Telescript Middleware for spontaneous Networking Vision spontaneous networking of electrical devices (but not only computers) very simple connection platform independence JINI UPnP JAVA Intelligent Infrastructure, JINI „Middleware“ for spontaneous networking; originally developed from Sun JINI Connection Technology enables dynamic control of networked services and devices Partitioning into so called Lookup Groups: different sets of lookup-services basic operations: Discovery: offers locating of/


MCTS Guide to Microsoft Windows 7

IP (contd.) MCTS Guide to Microsoft Windows 7 Essential IPv4 Utilities Hostname command Displays host name of the computer that it is run on ipconfig command Displays the basic TCP/IP settings of all active network connections ping command Confirms basic IP connectivity between the computer that it is run on and a specified target host tracert command Details an IP path through routers to/


Introduction to Broadband Multimedia Network

information carrier will be used for information exchange between different places? Direct transmission using computer networks Combined use of storage and transmission media (e.g. electronic mail). Introduction to Multimedia/wind etc. Aperiodic sound sources - less periodic - unpitched percussion, sneeze, cough. Introduction to Multimedia Introduction to Multimedia Basic Sound Concepts Sound Transmission Sound is transmitted by molecules bumping into each other. Sound is a continuous wave that travels /


Train IT – Computer Networks University of Debrecen

Train IT – Computer Networks University of Debrecen Train IT - Networks 1 Debrecen, 2012. I. – Basics of Computer Networks Train IT - Networks 2 Debrecen, 2012. Computer Networks Computer Networks : Two or more computers linked together with some software and hardware tools for an information transmission related purpose. Objectives: Sharing resources. Increasing reliability. Increasing speed. Human communication. Train IT - Networks 3 Debrecen, 2012. Classification of Computer Networks Based on their Sizes/


Validating Computer System and Network Trustworthiness

Require Different Statistical Techniques Transient measures (terminating simulation): Multiple trajectories are generated by running basic simulation loop multiple times using different random number streams. Called Independent Replications. Each trajectory/of the author. Course Outline Revisited Issues in Model-Based Validation of High-Availability Computer Systems/Networks Stochastic Activity Network Concepts Analytic/Numerical State-Based Modeling Case Study: Embedded Fault-Tolerant Multiprocessor System /


Chapter Nine Introduction to Metropolitan Area Networks and Wide Area Networks Data Communications and Computer Networks: A Business User’s Approach Sixth.

speed with very low error rates. WANs usually follow a mesh topology. Data Communications and Computer Networks: A Business Users Approach, Sixth Edition Wide Area Network Basics Data Communications and Computer Networks: A Business Users Approach, Sixth Edition Wide Area Network Basics A station is a device that interfaces a user to a network. A node is a device that allows one or more stations to access the physical/


Wireless/Cellular Technologies

Prof. Dr.-Ing. Jochen Schiller 9 802.11 - Architecture of an ad-hoc network Freie Universität Berlin Institut of Computer Science 802.11 - Architecture of an ad-hoc network Mobile Communications 2002 Direct communication within a limited range Station (STA): terminal with access mechanisms to the wireless medium Independent Basic Service Set (IBSS): group of stations using the same radio frequency 802.11/


1 University of Freiburg Computer Networks and Telematics Prof. Christian Schindelhauer Wireless Sensor Networks 23rd Lecture 30.01.2007 Christian Schindelhauer.

set not necessarily intuitively desired solution –Example: Radial graph, with only (v 0,v i ) 2 E University of Freiburg Institute of Computer Science Computer Networks and Telematics Prof. Christian Schindelhauer Wireless Sensor Networks31.01.2007 Lecture No. 23 - 15 A basic construction idea for independent sets  Use some attribute of nodes to break local symmetries –Node identifiers, energy reserve, mobility, weighted combinations… - matters/


UbiCom Book Slides (Abridged Version)

and interaction FCAPS Why is good system management needed? System & network downtime leads to lost revenue, opportunities and productivity. Ubiquitous computing: smart devices, environments and interaction Ubiquitous computing: smart devices, environments and interaction FCAPS Standardization of common network management functions referred to as FCAP FCAPS functions defines basic requirements for managing distributed computers and hence UbiCom systems. TMN model for managing Open Systems within/


CNT 4714: Enterprise Computing Fall 2012

are several central components that a distributed system must contain: A set of autonomous computers. A communication network, connecting those computers. Software which integrates these components with a communication system. What is a Distributed System/partitioning of the architecture of a distributed system into different components with respectively different areas of responsibility, basically allows for the creation of simpler and therefore more controllable individual components. The result of this /


Computer Systems and Networks Foundation of the IT revolution! Dr. Alan D. George CSN Area Coordinator ECE Department 09/19/02.

strengths and weaknesses. Study memory architectures, in particular, caches. Cache behavior will be simulated. Study memory architectures, in particular, caches. Cache behavior will be simulated. EEL 4930 Computer Networks This special-topics course introduces basic principles and practice of computer networking, emphasizing data and computer communication within the framework of the lower layers of the OSI and TCP/IP protocol architectures. This special-topics course introduces/


August 10, 2005 (Week 1) 1 CS 5224 High Speed Networks and Multimedia Networking Dr. Chan Mun Choon Semester 1, 2005/2006 School of Computing National.

Concept Course Pre-requisites Assume students have taken undergraduate networking classes like CS2105/CS3103 Assume students have taken undergraduate networking classes like CS2105/CS3103 Basic background on probability and algorithms Basic background on probability and algorithms Textbooks: Textbooks: S. Keshav, "An Engineering Approach to Computer Networking", Addison-Wesley. S. Keshav, "An Engineering Approach to Computer Networking", Addison-Wesley. Reference Books Reference Books Bertsekas and Gallager/


Chapter Twelve Network Security Data Communications and Computer Networks: A Business User’s Approach Fifth Edition.

key is the unique piece of information that is used to create ciphertext and decrypt the ciphertext back into plaintext Data Communications and Computer Networks: A Business Users Approach, Fifth Edition26 Basic Encryption and Decryption Techniques (continued) Data Communications and Computer Networks: A Business Users Approach, Fifth Edition27 Monoalphabetic Substitution-Based Ciphers Monoalphabetic substitution-based ciphers replace a character or characters with a different character/


The Medium Access Control Sublayer

fond out if this is the case. In ALOHA after the satiation transmits its message to the central computer, the computer rebroadcasts the frame to all of the stations. Original sending station can listen for the broadcast from the/The binary countdown protocol. A dash indicates silence. Limited-Contention Protocols So far we have considered two basic strategies for channel acquisition in a broadcast network: Contention (e.g., CSMA), and Collision free protocols. Two important performance measures: Delay at /


Algorithmic Foundations of Ad Hoc Networks: Part II

blocked for time Level 2 Level 1 Level 1 ETH Zurich Summer Tutorial Algorithmic Foundations of Ad Hoc Networks A Sublinear Time Distributed Algorithm All previous algorithms perform computation over fragments of MST, which may have diameter Two phase approach [GKP98] Controlled execution of the basic algorithm, stopping when fragment diameter reaches a certain size Execute an edge elimination process that requires processing/


Module 5: Securing Windows 2000-based Computers. Overview Planning Physical Security for Windows 2000–based Computers Evaluating Security Requirements.

, and the use of hardware configuration security methods, such as smart cards and basic input/output system (BIOS) passwords. Planning Physical Network Security Placing Servers in Locked Rooms Securing Network Devices Configuring Network Devices As RADIUS Clients Planning Physical Network Security Windows 2000-based computers that are being used as servers in a network are vulnerable to risks of unauthorized access, physical damage, and theft. Interruption of/


Parallax BASIC Stamp® Tutorial

: 6-15VDC Wall Transformer, center positive. 9V Battery Data Connections A serial cable (modem cable) is connected between BASIC Stamp and the computer’s serial communication port (COM port). Serial means that data is sent or received one bit at a time. The/pushbutton 2 Speaker CON 1 Speaker Pin ***** Activity board users set to 11 ****** Pot_Pin CON 7 Input for Potentiometer RCTIME network PB_On CON 0 Constant for state of pressed switch (Active-Low) PB_Off CON 1 Constant for state of un-pressed switch/


Chapter Two Fundamentals of Data and Signals

Edition Data and Signal Conversions In Action: Two Examples (continued) Data Communications and Computer Networks: A Business Users Approach, Sixth Edition Data and Signal Conversions In Action: Two Examples (continued) Data Communications and Computer Networks: A Business Users Approach, Sixth Edition Summary Data and signals are two basic building blocks of computer networks All data transmitted is either digital or analog Data is transmitted with a signal/


Chapter Two Fundamentals of Data and Signals Data Communications and Computer Networks: A Business Users Approach Sixth Edition.

bandwidth of a signal and how it relates to data transfer speed Identify signal strength and attenuation, and how they are related Data Communications and Computer Networks: A Business Users Approach, Sixth Edition3 Objectives (continued) Outline the basic characteristics of transmitting analog data with analog signals, digital data with digital signals, digital data with analog signals, and analog data with digital signals List/


Computer Systems Lab TJHSST Current Projects 2004-2005 Second Period.

user controls a part of the system by using an individual device (such as a TI-83+ calculator or a networked computer). NetLogo comes packaged with an expansive models library and an assortment of code samples for easy access. A. NetLogo Graphic/ have traits that negatively affect their performance. Modeling Evolving Social Behavior Stephen J. Hilber In the end, a single basic agent will evolve into numerous subspecies of the original agent and demonstrate evolutionary behavior. This pro ject will show that /


© V. De Florio KULeuven 2002 Basic Concepts Computer Design Computer Architectures for AI Computer Architectures In Practice 3/1 Course contents Basic.

Practice 3/33 The Associative String Processor “The” ASP Programming language is PROLOG Scheme: © V. De Florio KULeuven 2002 Basic Concepts Computer Design Computer Architectures for AI Computer Architectures In Practice 3/34 Neural Computing Data parallel or function parallel? Each node of a neuron network is conceived to run a single overall function - > data parallel After training, each node becomes a sort of individual that/


1 Internet & Computer Security 101 For Windows-based computer labs Presenter: Rebecca ShulerJuly 28, 2006.

wireless to work), then click “Safe Mode with Networking.” If you didn’t see the text menu and went right into Windows, you’ll just need to restart the computer and try again. 6: HOSTS & PAC 7: System Restore THE NOT-SO-BASICS: VIRUS REMOVAL 69 Internet & Computer Security 101 1: Windows Updates THE NOT-SO-BASICS: VIRUS REMOVAL 2: Firewall 3: Anti-Virus 4/


What can computational models tell us about face processing? Garrison W. Cottrell Garys Unbelievable Research Unit (GURU) Computer Science and Engineering.

PCA is like Factor Analysis: It finds the underlying directions of Maximum Variance PCA can be computed in a neural network through a competitive Hebbian learning mechanism Hence this is also a biologically plausible processing step We /and birds. Participants provided their own controls. Tanaka & Taylor, 1991 Robin Bird Animal Object Verification Task Superordinate Basic Subordinate Plant Dog Sparrow YES NO 600 Mean Reaction Time (msec) 700 800 900 SuperordinateBasicSubordinate Downward Shift Expert Domain/


Computer Network Systems

, and a way to ensure that two or more nodes don’t try to transmit data on the network at the same time. The Data Link layer also provides basic error detection and correction. The Network layer handles the task of routing network messages from one computer to another. The two most popular layer 3 protocols are IP (which is usually paired with TCP) and/


Chapter Two - The Origin of Networked Virtual Environments Department of Defense Networked Virtual Environments 20 SIMNET 20SIMNET 20 Distributed Interactive.

within the confines of whatever chain of command was imposed on the simulation participants. SIMNET Architecture Computer Image Generation Software Other-Vehicle State Table Network Interface Software Sound Generation Software Own-Vehicle Dynamics Control and Interface Software Local area network SIMNET The SIMNET network software architecture has three basic components: An object-event architecture,An object-event architecture, A notion of autonomous simulation nodes, andA/


Chuong Huynh National Center for Biotechnology Information,

Library of Medicine, National Institute of Health This is intended to be a very general overview of the concepts in computer networking and communication. May 21, 2001 Outline Basic concepts in communications Understanding Networking. Understanding Transmission Medium (Network Cables) Understanding Network Hardware WAN and LAN Understanding Network Protocols Potential topics: TCP/IP and the Internet TCP and UDP Gateway and Routing Protocols Telnet and FTP TCP/IP/


IP Networking.

ARP – Address Resolution Protocol Address Resolution Protocol allows a computer to send a broadcast on the network which basically says: “I need to send a message to 192.168.9.2. Can the computer with this IP address please respond to this message and / parameters (and more) without any manual intervention. A client broadcasts a request on the network which only a DHCP server will reply to. The request basically says “The computer with MAC address ?? Needs an IP address. Please send me one!” The DHCP server/


To protect the environment and human health. Question: What is the purpose of the Exchange Network? Why keep investing in it? Answer: The Exchange Network.

Web The Approach: Address The Watershed - the basic unit for the environment The Map: Geo-spatial Framework for Surface Water The National Watershed Boundary Dataset (WBD) National Stream Network (NHD) The National Watershed Boundary Dataset (WBD) National Stream Network (NHD) Created by Zenny K. Sadlon The Goal: National Environmental Computing Infrastructure with online environmental modeling National Environmental Computing Infrastructure with online environmental modeling The Operational/


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