you can never have enough abbreviations

What kind of PC do you have? Did the officer have PC? That's a very PC thing to say. She's a member of the PC party. Did you have PC with the windshield? Who's the PC for Trinity? Join the PC!

PC  Packet Classifier
PC  Peace Corps
PC  Percent / Percentage
PC  Personal Computer
PC  Physical Contact
PC  Piece of Crap
PC  Player Character (see NPC)
PC  Politically Correct
PC  Post Card
PC  Post Cibum (after meals)
PC  Primary Center
PC  Printed Circuit
PC  Privileged Character
PC  Privy Council
PC  Probable Cause
PC  Production Control
PC  Program Counter
PC  Progressive Conservative (Canada)
PC  Project Coordinator

Who's designing the DAC for DAC? Have you flown into DAC before? Who has DAC for the DAC?

DAC  Data Authentication Code (FIPS 113)
DAC  Design Automation Conference (CAO)
DAC  Dhaka, Bangladesh
DAC  Digital-Analog Converter
DAC  Discretionary Access Control
DAC  Douglas Aircraft Corporation
DAC  Dual Attachment Concentrator (FDDI)

Oy.