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PIC Personal Information Carrier +
Personal Intelligent Communicator +
Personal Internet Communicator +
Platform for Internet Content +
Priority Interrupt Controller +
Program Interrupt Controller
PICS Platform for Internet Content Selection [W3C]
PICT Picture
PID Packet Identifier + Physical Interface Device +
Process Identification Number + Product ID +
Proportional, Integral, Derivative
PIER Procedures for Internet/Enterprise Renumbering
PIF Picture Interchange Format File +
Program Information File
PII Program Integrated Information
PILOT Programmed Inquiry Learning Or Teaching
PilotACE* Pilot Automatic Computing Engine
PIM Personal Information Manager +
Primary Interface Module +
Protocol-Independent Multicast
PIN Personal Identification Number +
Process Identification Number [Unix]
PINE Pine Is Not Elm (original usage) +
Program for Internet News & Email (present usage)
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