This document discusses 10 algorithms that have changed the future. It begins by defining what an algorithm is and how it is essential to how computers process data. It then provides examples of specific algorithms including search engine algorithms used by companies like Google to match and rank webpages, public key encryption algorithms for secure data transmission, error correcting codes to ensure accurate data transfer, and pattern recognition algorithms enabling applications like facial recognition. The document emphasizes that while algorithms may seem complex, they are based on precise sets of rules and have revolutionized fields like internet search and security.