Businesses can sort of be conceptualized as a computer system, there is some sort of input, some sort of processing, and some sort of output
Inputs for a Business Venture are usually provided by an organization who is referred to as a Vendor
The term Vendor is more of a Relationship with respect to your business
Outputs for a Business are easy to describe because you are one, a Customer
Customers can be individual people or other Organizations
Customers buy your output