[1] Packet Transfer Protocol - Protokoll der NetBIOS Netzwerk Schicht

[2] Program to Program (Communication)

[3] Point to Point (Connection)

[4] Paper Tape Punch (->"IEEE Standard Dictionary")

[5] Process To Process group (POSIX)

[6] Pointe A Pitre, Guadeloupe - internationale Fughafen-Kennung.