Portable electrical device having a detachable input unit

摘要

The invention relates to an electrical device, of which one example is a laptop-type PC provided with a PC body and a keyboard configured as an input unit to be detachable from the PC body. Such a PC is equipped with the detachable keyboard which can be used either in a wired system or a wireless system in a state separated from the PC body. The invention allows for the input unit to automatically switch between wired and wireless operation depending on the state of connectivity between the input unit and the electrical device. The invention also provides at least two different, advantageous positions of wired integration between the input unit and the electrical device.