Block and chain, because word suggests, a chain made of blocks! So we know very well what are these blocks. Blocks are a kind of database! People who develop computers know databases well! And for people who do not know, if we say in simple language, then a database is https://sergioypkc58269.blogscribble.com/30633440/what-is-blockсhain-technology-and-how-does-it-work