COMPUTER SOFTWARE, INCLUDING OPERATING DOCUMENTATION AND COPYING DISKS PERMITTING SIMULATANEOUS CMMUNICATIION BETWEEN MULTIPLE DATA COMMUNIC ATION DEVICES WHICH HAVE DIFFERING COMMUNICATION CHARACTERISTICS (VARIABLE BAUD, MULTIPLEXING COMMUNICATIONS CONTROLLERS FOR DIFFERING COMMUNICATION DEVICES WHICH HAVE DIFFERING COMMUNICATIONS PROTOCOLS), NAMELY BETWEEN PICK OPERATING SYSTEM BASED MINICOMPUTERS AND OTHER MINICOMPUTERS AND OTHER MINICOMPUTERS, POINT-OF-SALE DEVICES, AND OTHE R PROGRAMMABL...