1) Network Interface Card 2) Ethernet is the name of the type of interface and cabling. 10-15 years ago Token-Ring was the standard, now it's ethernet. 3) The throughput speed of a network. 10 megabits and 100 megabits. When you have the slash, it means that it can either or. You will soon start seeing 10/100/1000 (ie Gigabit). Hope that helps.
I think what you're referring to is 802.11 It's essentially "Wireless Internet". It's the protocol designation given by the IEEE. You have several variations of the protocol, such as 802.11a, 802.11b, 802.11g and most recently 802.11n (which hasn't been ratified yet). For more information, check this out: http://en.wikipedia.org/wiki/802.11
