Week 07 - Ch07

7. Telecommunications, the Internet, and Wireless Technology

7.1 Learning Objectives

• Understanding telecommunications networks and key networking technologies

• Different types of networks

• Functionality of the Internet and internet technologies for communication and e-business

• Wireless networking technologies and standards

• Role of Management Information Systems (MIS) in career advancement

7.2 Video Cases

• Case 1: Telepresence Moves out of Boardroom to Field

• Case 2: Virtual Collaboration with IBM Sametime

7.3 The National Hockey League Scores with Wireless Technology

Problem

• Difficulty in tracking in the sport of hockey

• Potential to leverage new technology

Solutions

• Digital strategy adoption

• Selection of wireless technology

• Revision of game tracking process using:

  • Wireless sensors

  • OASIS software

  • Cameras and antennas

7.4 Networking and Communication Trends

• Convergence: Merging of telephone and computer networks into a single digital network

• Broadband: Majority of U.S. households access high-speed internet

• Broadband Wireless: Increasing voice and data communications over wireless platforms

7.5 What Is a Computer Network?

• Connection of two or more computers

• Major components of a simple network:

  • Client and server computers

  • Network Interface Cards (NICs)

  • Connection medium

  • Network Operating System (NOS)

  • Hubs, switches, routers

• Software-defined networking (SDN): Centralized management of network functions

7.6 Networks in Large Companies

• Integration of numerous Local Area Networks (LANs) into corporate networks

• Usage of multiple powerful servers for:

  • Websites, corporate intranets, extranets

  • Mobile WLAN (Wi-Fi)

  • Videoconferencing and telephone systems

7.7 Key Digital Networking Technologies

Client/Server Computing

• Clients connected to a centralized network server

• Server manages network communication and allocation of addresses for clients

Packet Switching

• Slices digital messages into packets for transmission via various routes

• More efficient than circuit-switched networks

TCP/IP and Connectivity

• Transmission Control Protocol/Internet Protocol (TCP/IP): Main protocol for internet communication

• Four Layers:

  • Application layer

  • Transport layer

  • Internet layer

  • Network interface layer

7.8 Types of Networks

• Signal Types: Digital vs. Analog

• Network Types:

  • Local Area Networks (LANs)

  • Wide Area Networks (WANs)

  • Metropolitan Area Networks (MANs)

  • Campus Area Networks (CANs)

7.9 Transmission Media and Speed

• Physical Transmission Media:

  • Twisted pair wire, coaxial cable, fiber optics, wireless media

• Bandwidth: Measured in bits per second (bps) or Hertz

7.10 What Is the Internet?

• The most extensive global network

• Internet Service Providers (ISPs) offer various types of connections including:

  • Dial-up

  • DSL/FIOS

  • Cable

  • Satellite and T1/T3 lines

7.11 Internet Addressing and Architecture

• IP Addressing: Unique 32-bit number for each device

• Domain Name System (DNS): Converts IP addresses into easier-to-remember domain names

7.12 Internet Architecture and Governance

• Structure includes backbone networks owned by network service providers and local access via regional providers

• Establishment of standards by organizations like IAB, ICANN, and W3C

7.13 Future Internet Developments

IPv6 and Internet2

• IPv6: New addressing scheme offering an extensive number of unique addresses

• Internet2: Consortium for testings new technologies with high-capacity networks

7.14 Internet Services and Communication Tools

• Key services include e-mail, instant messaging, FTP, and the World Wide Web

Voice over IP (VoIP)

• Allows digital voice communication via IP and packet-switching

7.15 Wireless Computer Networks

Bluetooth and Wi-Fi

• Bluetooth: Low-power short-range connectivity for personal area networks

• Wi-Fi: Standards for wireless local area networks

  • Usage of access points for connecting devices

Hotspots and WiMax

• Zones with multiple access points

• WiMax: Wide-reaching wireless technology with greater coverage

7.16 RFID and Wireless Sensor Networks

RFID Technology

• Uses tags with microchips for item localization

  • Applications include toll collection and supply chain tracking

Wireless Sensor Networks (WSNs)

• Networks of devices monitoring various environmental factors

• Sources of big data fueling the Internet of Things (IoT)

7.17 Career Development in MIS

• Example case: Automotive digital advisor role at A1 Western Car Dealers

• Insights into job requirements and interview preparation

7.18 Conclusion

• Effective use of telecommunications, internet, and wireless technologies is paramount for modern businesses and organizational management.