BTC is the currency unit of Bitcoin. In market prices, the price of 1 BTC is generally used as the standard.
For example, it is used as 1 BTC, 0.01 BTC, and 0.024 BTC.
The smallest unit of Bitcoin is 0.00000001BTC (8 decimal places), and is called “1 satoshi” after its inventor.
Bitcoin (BTC) was first published in a paper in 2008 by a man named Satoshi Nakamoto. The following year, 2009, the first Bitcoin (BTC) was issued.
0.00000001BTC = 1 satoshi