COMMUNICATIONS SYSTEMS CONSISTING OF COMPUTER HARDWARE, COMPUTER OPERATING PROGRAMS, LIGHT EMITTING DIODE DISPLAYS, COMPUTER INPUT TERMINALS, INTERCONNECTING DEVICES FOR ALLOWING ALL OF THE FOREGOING TO OPERATE AS A UNIT, AND INSTRUCTION MANUALS SOLD THEREWITH, ALL OF WHICH AID IN THE LOCATION AND TRACKING OF PERSONNEL WITHIN AN ENTERPRISE OR FACILITY AND COMMUNICATIONS BETWEEN INDIVIDUALS OF AN ENTERPRISE OR FACILITY