BUS 2371Lecture 6: Networks and CollaborationBUS 237Information Systems in BusinessBUS 237Agenda•Questions?•Assignment #1•MyMISLab Training and Tests•Midterm Exam•Introduction to telecommunications and computer networks•Definitions•Local Area Network (LAN)•Wide Area Network (WAN)•InternetBUS 2372Midterm Exam•90 minutes (same time & place as the lectures)•Closed book •no calculators, translators, PDAs, cell phones, etc.•60 multiple choice questions •sample format on WebCT –Week 7•Covers Chapters 1-6•textbook and all lecture material•Bring the following:•your SFU ID or picture ID (required)•pencil (to fill in answer sheet) and eraser•Questions?BUS 2373This Could Happen to You•A manager needs to decide where she will run the blog•It needs to be private to maintain a competitive advantage•Sales people need to have easy access•Passwords may be needed to restrict access•The company has a private network•Protected by firewall•Employees access through VPN•can be protected from unauthorized access•sales people can access with same password they already use•What should she do?BUS 2374Learning ObjectivesBUS 2375Q1. Why should I care about networks?Q2. What is a computer network?Q3. What are the components of a LAN?Q4. What do I need to know about connecting to the Internet?5. How does email actually work?Q6. What are firewalls, encryption, and VPNs?Q7. Why is my phone getting smarter?Q8. How does a search engine work?Definitions: TelecommunicationsBUS 2376The electronic transfer of data is calledTelecommunicationsThe transfer can occur between people or machines
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BUS 2372Definitions: TelecommunicationsBUS 2377Two or more people talking on a telephone is TelecommunicationDefinitions: TelecommunicationsBUS 2378Or... two people usingcomputers to senddata to each other isTelecommunicationDefinitions: TelecommunicationsBUS 2379Or... two machinessending informationto each other is alsoTelecommunicationDefinitions: Transmission MediaBUS 23710The transfer of electronic data occurs through a Transmission MediaDefinitions: Transmission MediaBUS 23711There are two types of transmission media:Wireline& WirelessDefinitions: Transmission MediaWireline•Twisted-pair copper(telephone wire)•Coaxial cable (cable television)•Fiber-optic cableWireless•Infrared light•Cellular telephone (analog or digital)•Microwave•Satellite (geostationary or low-earth)BUS 23712