The $99 Typo Keyboard case will work with an iPhone 5 and 5s. Similar to a Mophie Case for the iPhone, you slide two parts of the keyboard-equipped case onto the phone. You then power on the case ...

Because of this, after a while, it became very difficult for people to use the typewriter. Now you must have some idea why there was a need to abandon ABC and adopt the QWERTY keyboard.