Today in STEM History - September 13, 1956 IBM unveiled IBM 305 RAMAC as the world's first commercial computer to utilize disk storage. Since then, data storage technology has advanced in terms of capacity, speed, portability, and reliability, enabling the digital age we live in today. These advancements have been enabled through innovations in STEM fields, such as materials science, nanotechnology, and computer engineering. IBM IEEE Computer History Museum National Museum of American History AC