public Machine CreateMachine(int numberOfProcessors, int sizeOfMemory)
{
Machine machine = new Machine();
for (int i=0; i<numberOfProcessors; ++i)
machine.AddProcessor(new Processor());
machine.MemorySize = sizeOfMemory;
machine.System = OperatingSystemBuilder.CreateOSWithRoundRobin();
machine.System.Setup(machine);
Memory.Instance = machine.Memory;
return machine;
}