According to one embodiment, a keyboard PC includes a processor, a foldable keyboard, a housing, and an output terminal. The foldable keyboard comprises a first keyboard part and a second keyboard part. The housing that encloses the processor comprises a first housing part and a second housing part. The first housing part comprises the first keyboard part. The second housing part comprises the second keyboard part. The first housing part and the second housing part are configured to be opened or closed relative to one another by folding the housing. The output terminal supplies an image signal output from the processor to a display device.