To provide a side table having a table for placing a computer and peripherals which is easy to use and allows an easy installation of the computer and peripherals on the side table and an easy maintenance after the installation.

Setting and maintenance of a computer and peripherals are easy because holder 8 can be easily drawn forward of side desk 1 or stored inside space S. The side desk 1 won't be loaded when load is put on it or get unstable when the holder 8 is drawn forward, because the holder 8 is supported on floor surface F through caster 11. The apparatus won't damage wiring by being drawn too much, because the side desk 1 is controlled so that it won't be drawn too much.