ELI5 What are the Bitcoins input/output transactions

I saw somewhere that default number of input transactions is 2. What does that mean? Are that 2 50/50 transactions to some address, and why does that exist? Can someone explain it to me in a simple and non mathematical (scientific XD) way so I can understand what is that? Thanks! submitted by /u/r3310 [link] … Read moreELI5 What are the Bitcoins input/output transactions