Although poor-quality collections existed at least as far back as the BBS era, the term "shovelware" became commonly used in the early 1990s to describe CD-ROMs with collections of shareware or public domain software. The capacity of CD-ROM was 450–700 times that of the floppy disk, and 6–16 times larger than the hard disks commonly fitted to personal computers in 1990. This outsized capacity meant that very few users would install the disc's entire contents, encouraging producers to fill them by including as much existing content as possible, often without regard to the quality of the material.