DMC

DATA ACQUISITION SYSTEMS, COMPRISING DATA PROCESSING INPUT-OUTPUT UNITS-NAMELY, MAGNETIC TAPE UNITS, STRIP PRINTERS, LINE PRINTERS, MAGNETIC DISC SYSTEM FREQUENCY SENSITIVE SWITCHES, AND COMPUTER INTERFACE EQUIPMENT INCLUDING A STORAGE TO COMPUTER INTERFACE DEVICE, A COMPUTER TO COMPUTER INTERFACE DEVICE, AN AUDIO RESPONSE INTERFACE DEVICE, AND A HIGH SPEED FILE COMMUNICATIONS CHANNEL