Personal Communications Service Permanent Change of Station Personal Communications Services Personal Communication Services Permit Compliance System Physical Coding Sublayer Personal Communications System Personal Computers Personal Communication Service Portable Computer System Pointing Control System Personal Communications Systems Pressure Control Solenoid photon correlation spectroscopy Physics of Colloids in Space Pointing Control Subsystem primary control ship process control system Process Control Systems Programmable Communications Subsystem Personal Communication System personal communication systems PERSONAL COMMUNICATIONS SERVER PERSONAL COMPUTER SYSTEM Plastic Clad Silica plastic-clad silica Power Conditioning System Power Conversion System Precision Control System primary coolant system Production Control System Program Coordination Staff Program Costing Staff Punched Card System palliative care service Partitioning Communication System passive containment system Patchable Control Store Patient Characteristic Study patient classification system