This document summarizes the evolution of external memory storage technologies from floppy disks to modern solutions. It begins with floppy disks in the 1970s-1980s, which were the first portable storage medium but had limited capacity. USB drives emerged in the 1990s-2000s with higher storage capacity and faster transfer speeds. Flash memory technology further improved with solutions like SSDs and microSD cards. Cloud storage gained popularity in the 2010s by allowing online access and storage. Future trends may include quantum computing providing unprecedented storage capabilities.