Fundamentals of Information Systems, Second Edition 1 Telecommunications, the Internet, Intranets, and Extranets

Fundamentals of Information Systems, Second Edition 2 Principles and Learning Objectives The effective use of telecommunications and networks can turn a company into an agile, powerful, and creative organization, giving it a long-term competitive advantage.

Fundamentals of Information Systems, Second Edition 3 Principles and Learning Objectives The Internet is like many other technologies - it provides a wide range of services, some of which are effective and practical for use today; others are still evolving, and still others will fade away from lack of use.

Fundamentals of Information Systems, Second Edition 4 Principles and Learning Objectives Originally developed as a document- management system, the World Wide Web is a menu-based system that is easy to use for personal and business applications.

Fundamentals of Information Systems, Second Edition 5 Elements of a Telecommunications System

Fundamentals of Information Systems, Second Edition 6 Media Types

Fundamentals of Information Systems, Second Edition 7 Common Wiring and Cabling Types

Fundamentals of Information Systems, Second Edition 8 Common Telecommunications Devices

Fundamentals of Information Systems, Second Edition 9 Costs, Advantages, and Disadvantages of Several Line and Service Types

Fundamentals of Information Systems, Second Edition 10 Networks and Distributed Processing Computer network - communications media, devices, and software needed to connect two or more computer systems. Centralized processing - processing occurs in a single location or facility. Decentralized processing - processing devices are placed at various locations. Distributed processing - computers are placed at remote locations but are connected to each other via telecommunications devices.

Fundamentals of Information Systems, Second Edition 11 Terminal-to-Host Connection

Fundamentals of Information Systems, Second Edition 12 File Server Connection

Fundamentals of Information Systems, Second Edition 13 Client/Server Connection

Fundamentals of Information Systems, Second Edition 14 A Typical LAN

Fundamentals of Information Systems, Second Edition 15 A Wide Area Network

Fundamentals of Information Systems, Second Edition 16 Connecting Computing Devices Using a Home Network

Fundamentals of Information Systems, Second Edition 17 Communications Software and Protocols Communications software - provides a number of important functions in a network Network operating system - controls the computer systems and devices on a network and allows them to communicate with each other Network management software - a manager can monitor the use of individual computers and shared hardware Communications protocol - rules and standards that make communications possible

Fundamentals of Information Systems, Second Edition 18 Common Communications Protocols

Fundamentals of Information Systems, Second Edition 19 Use and Functioning of the Internet

Fundamentals of Information Systems, Second Edition 20 U.S. Internet Usage by Age, Gender, Region, and Income

Fundamentals of Information Systems, Second Edition 21 Routing Messages Over the Internet

Fundamentals of Information Systems, Second Edition 22 How the Internet Works Internet Protocol (IP) Transport Control Protocol Uniform Resource Locator

Fundamentals of Information Systems, Second Edition 23 U.S. Top-Level Domain Affiliations

Fundamentals of Information Systems, Second Edition 24 Three Ways to Access the Internet

Fundamentals of Information Systems, Second Edition 25 Internet and Telecommunications Services

Fundamentals of Information Systems, Second Edition 26 Summary of Internet Services

Fundamentals of Information Systems, Second Edition 27 Common Abbreviations Used in Personal

Fundamentals of Information Systems, Second Edition 28 Two Approaches to Electronic Data Interchange

Fundamentals of Information Systems, Second Edition 29 The World Wide Web

Fundamentals of Information Systems, Second Edition 30 The World Wide Web An Internet service comprising tens of thousands of independently owned computers that work together as one. –Home page –Hypermedia –Hypertext markup language (HTML)

Fundamentals of Information Systems, Second Edition 31 Several Interesting Web Sites

Fundamentals of Information Systems, Second Edition 32 Intranets and Extranets

Fundamentals of Information Systems, Second Edition 33 Intranets and Extranets Intranet – an internal corporate network built using Internet and WWW standards and products Extranet - a network that links selected resources of the intranet of a company with its customers, suppliers, or other business partners Virtual private network - a secure connection between two points across the Internet Firewall - a device that sits between your internal network and the outside Internet

Fundamentals of Information Systems, Second Edition 34 Summary of Internet, Intranet, and Extranet Users

Fundamentals of Information Systems, Second Edition 35 Virtual Private Network

Fundamentals of Information Systems, Second Edition 36 Net Issues

Fundamentals of Information Systems, Second Edition 37 Privacy and Security Cookie Cryptography Encryption Digital Signature

Fundamentals of Information Systems, Second Edition 38 Cryptography

Fundamentals of Information Systems, Second Edition 39 Summary Networks - used to share hardware, programs, and databases across the organization. Internet - transmits data from one computer (called a host) to another. The Web - a collection of tens of thousands of independently owned computers that work together as one in an Internet service.