Keyboards in a computer are being replaced by unconventional designs over time to give users a easier and portable way of using keyboards. There is the touch pad keyboard built for the touch phones and qwerty keypads for the qwerty phone. Gaming consoles deal with their own set of keys and pointing devices so they do not fall under the group of conventional keyboards.
The micro or the ultra mini keyboards are fully designed keyboards for handheld use. They have the function keys on one side and function related to the mouse such as basics cut, copy and paste function on another. The keyboard contains all the characters in the middle and is easily accessed by the fingers. This is quite a designing challenge for hand held devices. The micro keyboard also contains a trackball and buttons for left click and right click functions of the pointer on the screen. The micro or the ultra mini keyboard is basically plug and play with USB ports. They are also wireless facilities inbuilt in them and can be operated in the wireless mode if required.