TheYes, the binary-coded decimal method discussed in this article, '''BCD''', is the most common one but not the only one. For clarity the method here can be referred to as '''Natural Binary-Coded Decimal''' ('''NBCD''') or '''BCD 8421'''. The 8421 digit series comes from the bit weights in the byte. Other BCD methods include [[Excess-3]] and BCD 2421 where the bits are balanced. Unlike in NBCD, in BCD 2421 zeros will appear as often as ones. In electronic devices unbalance could cause unwanted [[electric charge]]s. Another balanced system is BCD 84-2-1 (eight, four, minus two, minus one).
