MPPMassively Parallel Processor(ing) / Multilink Point-to-point Protocol
NOCSNetwork Operations Center System
VUPVAX Unit of Performance
SOGTSenior Officials' Group for Telecommunications
EAXElectronic Automatic Exchange
TRONThe Real-time Operating system Nucleus (project)
IOCInput/Output Controller
IVPCInternational Virus Prevention Conference
NNDNational Number Dialing
LGNLogical Group Node / Logical Group Number
GYHTBHGuess you had to be here
ITTAIformation Technology Training Association
PPNPrivate Packet Network / Programmer Project Number; now known as ID# or UserId / Project Program Number / Public Packet Switching
DUCWICDo You See What I See?
SACFSingle Association Control Function
@:-)From a person with wavy hair / Arab / East Indian
MPPMassively Parallel Processor(ing) / Multilink Point-to-point Protocol