How Much Data Is That? - James S Huggins' Refrigerator Door

We speak of a kilobyte, or a megabyte or a gigabyte without really knowing what it 0.1 bytes: A single yes/no decision (actually 0.125 bytes, but I rounded) 

MB does not equal Mb - eastman reference

A megabyte can represent 1000000 characters of 8-bit ascii text, or maybe 1000000 While a bit can represent only two possible values (a 1 or a 0), a byte can reasonable to expect 125 MB/s of actual data transfer out of gigabit ethernet.