(IEEE) (1) The arrangement of a computer system or component as defined by the number, nature, and interconnections of its constituent parts. (2) In configuration management, the functional and physical characteristics of hardware or software as set forth in technical documentation or achieved in a product.
Inc. after a company name means that the business in question has incorporated within its home state. Status as a C-corporation or an S-Corporation depends on tax filings with the Internal Revenue Service. Incorporation produces a separate entity -- in essence a fictional person created by law.
On the other hand, you can incorporate or form an LLC and you will not have to register the business name. You can register for any of these documents here online. Employers - i.e when hiring or having employees a company needs this. State Tax id (Employer Number) varies but average time is 1-5 business days.