High Quality Content by WIKIPEDIA articles! The Discover Card is a major credit card, issued primarily in the United States. It was originally introduced by Sears in 1985, and was part of Dean Witter, and then Morgan Stanley, until 2007, when Discover Financial Services became an independent company. Novus, a major processing center, used to be partners with the company as well. The Novus logo has since been retired and now the Discover Network logo has replaced it.