Abstract: A pad member used in operating computer has a substrate made of a soft yet firm material. A pedestal bulges from the upper surface of the substrate such that a hollow portion is formed thereunder. A friction surface layer is attached on the upper surface of said substrate. The substrate and the surface layer have a plurality of apertures respectively. A base layer with a flat bottom surface is attached on the bottom surface of the substrate.

Abstract: A table support mounted on the top plate of a desk to support the user's hand and arm when operating a mouse on the top plate, the table mount hand arm support including a mounting frame mounted on the top plate of the desk, the mounting frame having a top trough attached to the top plate of the desk at the top and a plate spaced below the top trough, a tension clamp mounted on the plate of the mounting frame to fix the mounting frame to the top plate of the desk, and a movable bearing device supported on the mounting frame and moved in the top trough for supporting the user's hand and arm, the movable bearing device including a movable bearing plate moved within the top trough, the movable bearing plate having a recessed plate body for supporting the user's hand and arm and a plurality of ball and socket assemblies provided at the recessed plate body at a bottom side and moved with the recessed plate body in the top trough.