To provide a computer device which enables a keyboard installation table to be installed in the front of the screen of a display device for the computer even when the display device is placed on a standard office desk.

A disklike installation base 6 having holder hollows 611 and 612, etc., for installing the display device 1 for the computer such as a CRT monitor is fitted with an arm 7 having a rotatable ring member 73 at the periphery of the installation base 6, and the keyboard installation table 5 is coupled with the arm 7 through a connection part 8 of a hinge structure which is rotatable on an axis parallel to the installation surface of the installation base 6. Further, the keyboard installation table 5 is coupled integrally with part of the keyboard installation base 6 or display device, e.g. a tilt swivel.