[1] Interface Message Processor - Teil des DDN/ARPANET/MILNET, Datenkommunikationshardware, entwickelt von BBN, ersetzt durch 1.)

[2] Interpersonal Messaging Protocol (enthalten in X.420: P2)

[3] Injection into Microwave Plasma

[4] Integrated Microwave Products (->"IEEE Standard Dictionary")

[5] Interplanetary Monitoring Platform

[6] Intrinsic Multiprocessing (->"IEEE Standard Dictionary")

[7] Internet Mercantile Protocol

[8] Initial Memory Protection (->"NASA Acronym List")

[9] Imperatriz, Brazil - internationale Fughafen-Kennung