Latest stable version of Bitcoin Core: 0.16.2 [Torrent]. It was always showing at the top left side.when I log in bitcointalk.org what is the use of that bitcoin core and is I earn from that website?
first of all and most importantly.
if you are in the mindset of thinking the only way to earn is from bounties on this forum. you need to realise bitcoin is a world currency that has many depths to it and many ways of earning that dont involve bounties.
too many new people think the scope of bitcoin is just this forum.
secondly. bitcoin core is the reference(main/core) software that controls what rules the network follows. yea you might have been told no one controls bitcoin but since 2013 a certain group of devs do make the decisions and others just follow.
there are other software around, mostly simple light/basic versions that dont hold or validate all the data.
there are a couple other bits of software that validate and hold the data. but they just follow the rules that bitcoin core set. it has become common that if any other software that does validate and does hold all of the data. if they were to set up their own community proposal list and attempt to help the community have a second option of innovating the network that is not "bitcoin core" ends up getting treated as an attack /invader.
so in short bitcoin core is the "core" / centre of the development of the network and the control of innovation of the protocol.
bitcoin cores software is known as a full node (fully featured software)
a wallet(holds the keys to make transactions)
the payment system (makes transactions)
the block validator (validates mining pools blocks)
the relay node (relays transactions and blocks)
by using the software you(your computer) validates relays and stores the data. which other people using it also do. so that the data and validation part of the system is distributed amungst all users of the software as there is no central service that does the validation/store of the data.
but you do not earn from it.