The document discusses different types of computer storage devices including USB, hard drives, RAM, CD-ROM, DVD-ROM, and floppy disks. It provides brief definitions and background information on each technology. USB allows users to save files like programs, presentations, photos and more. Hard drives were introduced by IBM in 1956 and have decreased in size while greatly increasing storage capacity over the years. RAM is a form of computer data storage that allows for random access. CD-ROMs and DVDs remain widely used optical disk formats in the computer industry. Floppy disks were composed of thin, flexible magnetic storage disks.