[1] Power Down Mode

[2] Pulse Delta/Duration Modulation (->"IEEE Standard Dictionary")

[3] Produktdatenmanagement

[4] (im Datenbankbereich:) Physical Data Model ("Gegenteil zu 4.))

[5] Program Development Manager (IBM)

[6] Processor Data Monitor (->"NASA Acronym List")

[7] Pressurized Docking Mast (->"NASA Acronym List")