1. Copyright 2007 Jim Martin1 Broadband Internet Access Dr. Jim Martin jim.martin@cs.clemson.edu

2. Copyright 2007 Jim Martin2 High-speed connection Slow-speed technology How to connect … Dial-up access modem in your computer uses a standard telephone line to connect to the Internet Digital subscriber line (DSL), cable telephone Internet services (CATV), cable modem, fixed wireless, and satellite modems Connection is always on— whenever the computer is running Connection must be established each time you log on. Slow but inexpensive

3. Copyright 2007 Jim Martin3 Broadband Access:DSL DSL is a very high-speed connection that uses the same wires as a regular telephone line. Provided by an Internet Service Provider (ISP) Here are some advantages of DSL: You can leave your Internet connection always on and still use the phone line for voice calls. Doesn't require new wiring. Provides asymmetric high speeds: up to 6Mbps downstream and 768,000 upstream. But there are disadvantages: A DSL connection works better when you are closer to the provider's central office. The connection is faster for receiving data than it is for sending data over the Internet. The service is not available everywhere.

4. Copyright 2007 Jim Martin4 Broadband Access: WiMAX WiMAX is short for Worldwide Interoperability for Microwave Access, and it also goes by the IEEE name 802.16. No wires needed between a house and the ISP. House can be 10 miles from the tower. Provides access speeds from 1 Mbps to 70 Mbps depending on range and terrain.

5. Copyright 2007 Jim Martin5 Broadband Access + Home Networks: SECURITY Issues Security issues Hacking : someone from the outside can hack into your systems preventing your network from working Attacks on machines connected to your home network Viruses that can delete your files Spyware that your files to the outside world Programs that can force your computer to attack other computers Your computer or home network must have these three security components: Anit-spyware software: Spy bot, ad aware or Microsoft’s SpyWare Defender Anti-virus software : Norton’s Antivirus, McAfee VirusScan Firewall : Norton’s Internet Security, zone labs, or purchase a broadband router ($30 Linksys boxes come with a firewall).