With terabyte drives (a trillion bytes) now easily available and smaller drives selling for very little money, you can store a lot of stuff - practically everything. And file sizes are continuing to increase as well. Documents with embedded graphics, large presentations, scanned images, digital photos, MP3 music files and even whole TV shows and movies are now residing on hard drives. The vast quantities of these and their inordinate size present new challenges for computer performance and make defragmentation more critical than ever.

Bios Magazine