"Visa Card: Visa card refers to the credit card issued by International Credit Card Company of San Francisco, USA"? This dear friend Zhang Tingyu must be too wrong.

The VISA of VISA credit card is not an abbreviation, but a proper noun. As for Visa International (VISA International Organization), it was converted from International Bankcard Company (IBANCO) in 1976, while Visa U.S.A (VISA United States) was converted from National BankAmericard Inc. (NBI). It has never been said that VISA credit card refers to the American San Francisco International Credit Card Company.

VISA International itself does not directly issue cards. VISA brand credit cards are issued by members (mainly banks) participating in the VISA international organization.