Electronic device for liquid immersion cooling and cooling system using same

A cooling system configured to directly cool a plurality of electronic devices of different types immersed in a coolant filled in a cooling apparatus, the cooling system comprising:

• the cooling apparatus including a cooling tank with an open space defined by a bottom wall and side walls, a plurality of arranged housing parts formed by dividing the open space using a plurality of internal partition walls in the cooling tank, and an inflow opening and an outflow opening for the coolant, the inflow opening being formed in a bottom part or a side surface of each of the housing parts, and the outflow opening being formed around a surface of the coolant circulating in the respective housing parts;
• a plurality of electronic devices of different types, including one or more first electronic devices configured to mainly execute arithmetic operations through a plurality of processors, and one or more second electronic devices configured to mainly execute storage through a plurality of storage units, wherein the one or arbitrary number of the first electronic devices and the one or arbitrary number of the second electronic devices are separately housed in the housing parts of the cooling apparatus for forming a computer with a desired calculation capacity and a desired storage capacity.