What does Bitcoin cash hard Fork mean?

Related questions

1. How many Bitcoins can ever be created?
2. What is the purpose of ethereum?
3. What is a Coinbase or generation transaction?
4. What is a soft fork?
5. What happens when a Blockchain Forks?
6. Is litecoin a fork of Bitcoin?
7. Is Zcash a fork of Bitcoin?
8. Is Bitcoin and Bitcoin cash the same?
9. What is Bitcoin forking?
10. What is a 51% attack?

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2. #generally
3. #bitcoin
4. #forks
5. #software
6. #using
7. #around
8. #participants
9. #cryptocurrencies
10. #specific
11. #operate
12. #world
13. #shared
14. #result
15. #upgrade