A cd key, or product key, is a specific software key required to activate a software program. The cd key is used to verify that the software program is licensed and not pirated. Cd keys are also used to activate software programs online.

During the Cold War, the United States and the Soviet Union developed different methods to activate software programs. The United States developed the product key, while the Soviet Union developed the cd key.

The product key is a 25-character alphanumeric code that is used to activate software programs. The product key is typically found on the back …