The prefix mega means one million; this prefix means one billion
billionth... [DOC] [TLE] Metric Prefixes and SI Units - learn.sparkfun.com [PAR] Metric Prefixes are incredibly useful for describing quantities of the .... A 
milliampere is 1 thousandth of the unit Ampere hence 1 Ampere is equal to 1000 
milliamperes.