Block and chain, because word suggests, a chain made of blocks! So we know what are these blocks. Blocks can be a kind of database! People who develop computers know databases well! And for those that do not know, as we say in simple language, then this database is known https://damienxzce84062.smblogsites.com/30567612/what-is-blockсhain-technology-and-how-does-it-work