 by other forms of storage devices. Here's an advert from one of the makers of floppy disks back then, 3M. Are you worried about a floppy disk losing all your payroll records? With 3M floppy disks, there are no worries because 3M tests every single one, so everyone is guaranteed 100% error-free for life. 3M floppy disks, one less thing to worry about.