Definition of Open Box Merchandise

What is the definition of “Open Box Merchandise”?

It seems that retailers have different opinions about wht it really is. In general, “open box merchandise” is a product that has its packaging opened and seals (if available) broken before it is sold to the end customer. Open box merchandise could be a product returned by a customer to the retailer or a demo product.

Would you buy a computer which is already taken out of its packaging, turned on, and had some modifications done on the software (no matter how little modification is made)?

90403