Block and chain, as the word suggests, a chain made of blocks! So we know what are these blocks. Blocks really are a kind of database! People who work with computers know databases well! And for people that do not know, if we say in simple language, then a database https://gregoryewof60481.digitollblog.com/30371194/what-is-blockсhain-technology-and-how-does-it-work