anchor.diff:                                                 printf " ") ls
                               printfn "") adjacencyList
   
  -
       /// shows the health of each computer
       member this.ShowSystem () =
           let fontColor (comp:Computer) =
  
positive.code: ﻿namespace ModelOfLAN
  
  open System.IO
  
  /// type of operating system
  type OS = | Windows | Linux | OS_X
  
negative.code:         Seq.iter (fun x -> fontColor x
                             System.Console.WriteLine("computer number " + x.ID.ToString () + " is " + (health x))) computers
      
      /// simulates the unit of time and performs changes in the system
      member this.Step () =
          let infected =
  