Dual Clutch Automatic vs Manual Gear Shift Transmission

Dual Clutch Automatic - is a manual transmission, without use of clutch.  The engaging/disengaging or gear change is controlled by computerized hydraulic system.  The time needed to make a gear change is very quick (milli-seconds).

Automatic - pressure plate is used to engage/disengage engine output/flywheel to transmission?? Nested gears are stacked concentrically.

Ford Focus maybe the least expensive vehicle equipped with dual clutch automatic transmission