How is internet speed measured? I'm paying for 5 "megs." I assume this means 5 megabytes. When I go and do a bandwidith test, say at Speedtest.net, I'm told that my internet download speed is 4906kb/s. Doesn that mean kilobytes per second. I guess what I'm asking is, doesn't it take 1,000 kilobytes to make a megabyte, lo.