1. Chapter 1: Introduction
Business Data Communications, 4e

2. Information & Communication
Networking is critical to the new corporate structures emerging in today’s businesses
Benefits of good networks
make geographically dispersed companies more manageable
help top-heavy companies trim down middle management
help companies break down barriers between divisions.
Stallings, Business Data Communications, Fifth Edition, © 2005 Pearson Education, Inc. All rights reserved

3. Trends Driving Data Communication
Traffic growth
Voice & data; local and long distance
Development of new services
In turn drives increased traffic
Advances in technology
Encourage and support increased growth and development
Stallings, Business Data Communications, Fifth Edition, © 2005 Pearson Education, Inc. All rights reserved

4. Key Technology Trends Faster and cheaper computing and communications
Increasingly “intelligent” networks
Growing importance of Internet, intranet and extranet applications
Increasing use of and dependence on mobile technology
Stallings, Business Data Communications, Fifth Edition, © 2005 Pearson Education, Inc. All rights reserved

5. Business Drivers
Stallings, Business Data Communications, Fifth Edition, © 2005 Pearson Education, Inc. All rights reserved

6. Convergence Applications Services Management Infrastructure
See figure 1.3 in book for relationship among layers.
Stallings, Business Data Communications, Fifth Edition, © 2005 Pearson Education, Inc. All rights reserved

7. Business Information Requirements
Voice communications
Data communications
Image communications
Video communications
Stallings, Business Data Communications, Fifth Edition, © 2005 Pearson Education, Inc. All rights reserved

8. The Internet & Distributed Applications
Key infrastructure for supporting distributed applications
Internet, including intranets and extranets
TCP/IP protocol suite
Distributed applications
Client-Server Architectures and Intranets
Stallings, Business Data Communications, Fifth Edition, © 2005 Pearson Education, Inc. All rights reserved

9. Network Types Wide Area Networks Local Area Networks (LANs)
Circuit Switched
Packet Switched
Frame Relay
ATM
Local Area Networks (LANs)
Wireless Networks
Metropolitan Area Networks
Stallings, Business Data Communications, Fifth Edition, © 2005 Pearson Education, Inc. All rights reserved

10. Transmission of Information
Transmission and transmission media
e.g. twisted pair, fiber, wireless, coax
Communication Techniques
encoding, interface, protocols
Transmission efficiency
multiplexing, compression
Stallings, Business Data Communications, Fifth Edition, © 2005 Pearson Education, Inc. All rights reserved

11. Management Issues Network Security Network Management
Stallings, Business Data Communications, Fifth Edition, © 2005 Pearson Education, Inc. All rights reserved

12. Communications Standards
Importance
Process
Organizations
Stallings, Business Data Communications, Fifth Edition, © 2005 Pearson Education, Inc. All rights reserved

13. Resources Web Sites Usenet Newsgroups Journals Business-oriented
Technical
Stallings, Business Data Communications, Fifth Edition, © 2005 Pearson Education, Inc. All rights reserved

14. Telecommunication Uses electricity to transmit messages
Speed of electricity dramatically extends reach
Sound waves: ~670 mph
Electricity: ~186,000 (speed of light)
Bandwidth= information-carrying capacity of a channel
Stallings, Business Data Communications, Fifth Edition, © 2005 Pearson Education, Inc. All rights reserved