An input/output device is disclosed that includes an input-sensitive display screen and alphanumeric keys for entering characters. The input-sensitive display screen may be positioned proximate the alphanumeric keys and be capable of displaying graphical information and sensing user selection of the graphical information. The input-sensitive display screen may include a combination display/input region and a non-display input region. The touch sensitive display screen may be detachable from the alphanumeric region and may be operable in a detached configuration. The input/output device may usable with a method of input correction. The method may include displaying, on a secondary display, a first text unit, such as a character or a word, which corresponds with a second text unit shown on a primary display screen of a computing device. The method further involves receiving user selection of the first text unit and replacing the first text unit with a second text unit.