Pro term help! What is BULK, OEM?

[MegaCharger]

What is BULk and OEM? I saw those on newegg but I have no idea what they are. Do they mean refurbished or something?

 

[microAmp]

OEM = Original Equipment Manufature.
When you buy an OEM all you get is the product, no fancy box, no bonus CD games. Most you'll get a CD with drivers on it.

Bulk.... if you buy more than one? Reduced price per item?