http://www.ramelectronics.net/html/connecters.html. This RAM Electronics Industries, Inc., Web site offers some very good images of the three main parallel connector types, as well as many of the other connectors mentioned in this chapter.
http://computer.howstuffworks.com/firewire1.htm. This HowStuffWorks, Inc., Web site offers a superb explanation of FireWire basics.
http://www.microsoft.com/windowsxp/pro/techinfo/planning/wirelesslan/solutions.asp. This Microsoft Web site explains wireless LAN technology in good detail.