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