The physical disk can be an individual disk or a disk array, such as a hardware RAID device, that appears to the operating system as one hard disk. Process A group of counters that monitor application software and system processes. A computer can have multiple processors, and each processor is shown as an instance of this object. Redirector, or Workstation Service Responsible for outbound network connections. When you connect to network resource on another computer, the Redirector service is handling the connection.
System Includes counters that apply to more than one component of a computer.
For example, in a multiple-processor computer, you are probably more concerned with the total time that a particular application takes on all processors rather than the time taken on each processor. The basic object responsible for executing instructions on a processor. All running processes have one or more threads.