To obtain a portable personal computer in which a display panel and a computer body can be adjusted in accordance with an operator's use environment.

This portable personal computer 1 consists of a computer body 2 and a keyboard 3 mounted on the computer body 2. Also, a 1st sheet-shaped support plate 4a and a 2nd support plate 4b are connected through a 1st turnable connecting part 5a on the bottom of the computer body 2. In the shape of part 5a, the plate 4a is a projecting type and the plate 4b is a recessed type and they are connected so as to be combined. A rotary shaft coming out of a 1st tilt mechanism is inserted into the recess of the plate 4b and fixed by a screw, etc.