automatic digital computer
automatic digital data acquisition and recording
automatic digital data assembly system
automatic digital data error recorder
automatic digital encoding system
automatic digital input/output system
automatic digital message switch
automatic digital message switching center
automatic digital network
automatic digital data acquisition and recording
automatic digital data assembly system
automatic digital data error recorder
automatic digital encoding system
automatic digital input/output system
automatic digital message switch
automatic digital message switching center
automatic digital network
automatic digital encoding system