what are the different types of cryptocurrencies?
what are the major differeces?
Cryptocurrencies is a blockchain protocol using some programming langauge like C++, javascript, ...etc.
Most of Cryptocurrencies is a Modified copies of Bitcoin like litecoin (edit in limited number and confirmed time) Bitcoincash .
Bitcoin have some problems which solved in altcoins but to be honest we really not need more than 1000 Cryptocurrencies (personally i don't like coins like 1 dollar = 0.0000001 X coin)