Flat computer i.e. tablet computer, has pushbutton releasing inserted pushable and/or pullable keyboard, which is mechanically or mechanically electronically pulled out, and again inserted into elongate or side opening after use

摘要

The computer has a pushbutton releasing an inserted pushable and/or pullable keyboard i.e. reinforced foil keyboard. The keyboard is mechanically or mechanically electronically pulled out, and again inserted into an elongate or side opening after use. The keyboard is electronically connected with the computer via a ribbon cable, sliding contacts, a wireless transmitter, and a light signal transmitter.