text: #ifndef SYSTEM_H
  #define SYSTEM_H
  
  #include <string>
  #include <vector>
  
  #include "process.h"
  #include "processor.h"
  
  class System {
   public:
    Processor& Cpu();                   
    std::vector<Process>& Processes();  
    float MemoryUtilization();          
    long UpTime();                      
    int TotalProcesses();               
    int RunningProcesses();             
    std::string Kernel();               
    std::string OperatingSystem();      
  
    
   private:
    Processor cpu_ = {};
    std::vector<Process> processes_ = {};
    
  };
  
  #endif