Abstract: A portable computer system enables a comfortable (more ergonomic) user environment without surrendering portability. The portable computer system includes a main body, a keyboard unit, and a display unit. The keyboard unit is attached to an upper surface of the main body and is structurally and operationally separated along a central axis into a left keyboard half and a right keyboard half, with the respective halves rotating on first and second hinges and being coupled to the main body at a rearward upper surface thereof. The display unit is mounted via a hinge unit to a rear side surface of the main body and is slidably detachable therefrom via a recess for receiving a portion of the hinge unit.