Bitcoin is a digital currency that was created by Satoshi Nakamoto in 2009.It is created electronically and impossible to control it.This currency are not printed currency like dollars or euros.Running computer all around the world are producing it.Owing to this reason they are different from other currencies.
The demand of the bitcoin is continuing to grow because bitcoin is unique. The investors are keep making investment with bitcoins becuase they know how profitable is the bitcoin. Bitcoin have characteristics that other currencies doesn't have.