3DDDI means 3-Dimensional Device Dependent Interface in Hardware
Similar to 3DDDI
ACPI - Advanced Configuration and Power InterfaceACPU - Aperiodic Constant Processing Utilization
ACS - Adder Comparator Selector
ACSR - Automated Compound Storage Retrieval
ACSU - Add Compare Select Unit
AD - Analog Disc
ADACS - Advanced Data Acquisition and Control System
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