Device bandwidths 
A cousin had asked some help in deciphering the marketing mumbo jumbo on his hard drive so he could upgrade his hard drive. It was an Ultra ATA/100 hard drive which is the previous generation of standards than the current SATA standard. So I was googling around trying to figure out how to explain the speed of the drive and how the marketing terms translate into that when I came across this real interesting page on wikipedia which lists device bandwidths for lots of peripherals:
http://en.wikipedia.org/wiki/List_of_device_bandwidthsIt's kind of interesting to compare the standards over the years and how the speeds have improved.
