BlackBerry is a mobile operating system originally created by Research In Motion (RIM). RIM now goes by the name BlackBerry. The BlackBerry name refers to the unique physical keyboard design on early devices that resembled the fruit of the same name.
Widely popular in the business world, BlackBerry is best known for its email features and BlackBerry Messenger (BBMâ¢).
You can learn more at the BlackBerry OS Support page.