flowchart LR

subgraph ETC
    PT(Painting) 
    IoT(Internet Of Things)
    FPGA(Field-programmable gate array)
end


    subgraph Input and Process and Output
        SEI(Sensors Input)
        PRO(Process)
        CHO(Output Chemicals)
        PHO(Output Physical)
        CEMO(Output Electro Magnetic Wave)
        SEI <--> PRO
        PRO <--> CHO
        PRO <--> PHO
        PRO <--> CEMO

        
        
        
        

        PRO -.-> SEI
        CHO -.-> SEI
        PHO -.-> SEI
        CEMO -.-> SEI
    end

    subgraph Telecommunication
        WIRL(Wireless)
        SAT(Satellite)
        INT(Internet)
        SER(Server)
        NET(Network)
    end

    MEC --> MOT
    MET --> MEC
    MOT --> SMO
    ELE --> CIRC
    CHIP --> SMO
    CIRC --> CHIP
    subgraph Computer Science
        AI(AI)
        PL(Programming Languages)
        NP(Network Programming)
        SI(Simulation)
    end
    PL --> SI
    PL --> AI
    PL --> NP

    
    subgraph Robotics
        MET(Machining)
        MEC(Mechanics)
        ELE(Electronics)
        CHIP(Chipsets)
        CIRC(Circuits)
        MOT(Motor)
        SMO(Servo Motor)
        subgraph 3D CAD/CAM
            DES(Design)
            DOC(Documentation)
            TOL(Tools)
            FEM(FEM)
        end
        subgraph 3D Printer
            ALM(AllMaterials)
            MAC(Machining)
            ASS(Assembly)
        end
    end
    
    subgraph Fundamentals
        SCI(Science)
        PHY(Physics)
        CHE(Chemistry)
        EE(Electrics)
        EMW([ElectroMagnetic Wave])
        PHY([Physics])
        
        CHE --> EE
        SCI --> EMW
        SCI --> PHY
    end