Bitcoin Cash, or BCH, is a variety of Bitcoin (BTC). On the 1st of August, 2017, after a 2-year dispute Bitcoin divided into two currencies.
Bitcoin Cash appeared as a result of a dispute between Bitcoin miner communities, which centered around the currency's scalability. As Bitcoin Cash is a variety (fork) of Bitcoin, everyone who had Bitcoins are eligible for the same number of Bitcoin Cash units upon meeting certain requirements.
Bitcoin Cash is a decentralized currency issued by other users who have enough hardware and software resources to support it.
The Bitcoin Cash rate depends entirely on the supply and demand. Its real value is determined by the total amount of goods and services one can purchase with Bitcoin Cash.