Say what you will about suitcase computers, but at least most of them still have their keyboards with them. [danjovic] has this vintage Brazilian computer from the 1980s called a Gradiente Expert.

The adapter project provides the possibility of connecting to expansion bus like the joystick adapters, in order to connect a standard AT or PS/2 type of keyboard and work with the Spectrum. The ...

The Magic Connector is a lot like the BulletTrain adapter. It creates a union between the Apple Wireless Keyboard and the Magic Trackpad, making it one single unit ...

The 5-pin DIN keyboard connector used with the first IBM PC (1981) and second-generation IBM AT (1984). It was subsequently replaced with the smaller 6-pin Mini-DIN connector on the IBM PS/2 in 1987.

Typing comfortably on a Smart Phone is best done using an external keyboard, especially if you spend a lot of time on IRC or use other chat apps. Obviously, the keyboard needs to be portable too.