NPN means Negative-Positive-Negative transistor in Hardware
Similar to NPN
ACP - Administrator's Control PanelACP - Advanced Co-Processor
ACPI - Advanced Configuration and Power Interface
ACPU - Aperiodic Constant Processing Utilization
ACS - Adder Comparator Selector
ACSR - Automated Compound Storage Retrieval
ACSU - Add Compare Select Unit
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