IMAOIn My Arrogant Opinion
TPADTerminal Packet Assembler / Disassembler
HIPOHierarchy plus Input - Process - Output (charts)
CPI-CCommon Programming Interface for Communications
SLISouthern Lights Incorporated (usually as SLi)
NSNanosecond (usually as ns) / Network Service
HDSLHigh-bit-rate Digital Subscriber Line / High-data-rate Digital Subscriber Line
TWTATraveling Wave Tube Amplifier
DECDTMDigital Distributed Transaction Manager
NTSNetwork Technical Support / Network Test System / Network Tracking System
FODFax On Demand / Finger Of Death / Format Office Document
PFAPage Frame Address / Peachtree First Accounting
TRACTelecommunications Research and Action Center
DFLDistributed Feedback Layer
VSRVoice Storage and Retrieval
SBDNSouthern Bell Data Network
NCANetwork Computing Architecture
IMAOIn My Arrogant Opinion