A table has a bottom plate having a bottom plate channel and an outer wall. A bottom plate lip is perpendicular to the outer wall. A top plate has a top plate lip overlying and parallel to the bottom plate lip. A lower end of a frame is in the bottom plate channel and an upper end of the frame is in contact with the top plate. An edge piece clamps the top plate lip and the bottom plate lip together. The edge piece extends entirely around a perimeter of the top plate.

A composite table top including a top plate having an outer and an inner surface, a bottom plate comprising a plurality of projections, each of the plurality of projections having a top defining a top surface. The composite table top has at least a pair of reinforcement inserts disposed at two opposite edges of the bottom plate. The sum of the top surfaces of the plurality of projections is 30%-70% of the upper surface of the bottom plate.

A table has a bottom plate having a bottom plate channel and an outer wall. A bottom plate lip is perpendicular to the outer wall. A top plate has a top plate lip overlying and parallel to the bottom plate lip. A lower end of a frame is in the bottom plate channel and an upper end of the frame is in contact with the top plate. An edge piece clamps the top plate lip and the bottom plate lip together. The edge piece extends entirely around a perimeter of the top plate.

A main control board is disposed in an accommodation space, is connected to an interactive display portion, and controls at least the interactive display portion. A power supply board is disposed in an accommodation space, is connected to the interactive display portion and the main control board, and supplies power to the interactive display portion and the main control board. A plug receiving portion is provided on a left plate which is one of a plurality of side plates, is connected to the power supply board, and has connected thereto by the attraction force of a magnet, a magnet-type plug of a magnetic cord that can be connected to an external power supply.

A composite table top including a top plate having an outer and an inner surface, a bottom plate comprising a plurality of projections, each of the plurality of projections having a top defining a top surface. The composite table top has at least a pair of reinforcement inserts disposed at two opposite edges of the bottom plate. The sum of the top surfaces of the plurality of projections is 30%-70% of the upper surface of the bottom plate.

A main control board is disposed in an accommodation space, is connected to an interactive display portion, and controls at least the interactive display portion. A power supply board is disposed in an accommodation space, is connected to the interactive display portion and the main control board, and supplies power to the interactive display portion and the main control board. A plug receiving portion is provided on a left plate which is one of a plurality of side plates, is connected to the power supply board, and has connected thereto by the attraction force of a magnet, a magnet-type plug of a magnetic cord that can be connected to an external power supply.