Block and chain, as the word suggests, a chain made of blocks! So we know what are these blocks. Blocks can be a kind of database! People who work with computers know databases perfectly! And for those who do not know, whenever we say in simple language, then this database https://sergioypkc58269.blogscribble.com/30633440/what-is-blockсhain-technology-and-how-does-it-work