he present invention coupled to simulators and testers.FIG. 2 is an illustration of a computer work station, embodying the system of FIG. 1, coupled to a tester.FIGS. 3-68 are screen displays illustrating various features of the system of FIG. 1.FIG. 3 illustrates icons representing system files and processes, including representative icons located in a directory for operation by a user.FIG. 4 ill