See: Non-RAID drive architectures
My favorite computer-related acronym has always been "JBOD" or "Just a Bunch of Disks" (or you can use "Drives" instead of "Disks"). It's a somewhat disparaging term for when someone effectively "tapes" drives together to make them one big drive.
Nerd 1: "Yo dude, I RAIDed my five 1TB drives together and now I have 5TB!"
Nerd 2: "You didn't RAID anything, moron. You just roped a bunch of disks together. You made a JBOD."
I'd like to thank the new AppleTV for being "Just Another Box" and reminding me of it.