272 S Sleeve S!P Surprise! S-Box Skunk Box SA Storage Array SABB Storage Array Building Block SAC Service Area Code SAC Service Area Computer SAC Special Area Code SAD Slick Ansi Designers SAFE Security Awareness From Education SAG Street Address Guide SAI Serving Area Interface SAIL Stanfords Artificial Intelligence Lab SALI Standalone Automatic Location Information SAM Secure Access Multiport SAMA Step by step Automatic Message Accounting SAP Secondary or Separate Audio Program SAR Store Address Register SARTS Switched Access Remote Test System SAS Single Attachment System SAS Switched Access Services SASE Self Addressed Stamped Envelope SASE System and Support Engineering SAT Special Access Termination SAT Supervisory Audio Tone SBA Shipping and Billing Authorization SBB System Building Block SBC Single Board Computer SBDN Southern Bell Data Network SBI Storage Bus Interconnect SBMS Southwestern Bell Mobile Service SBR Storage Business Review SBS Skyline Business Systems SBT Software Business Technologies SC Scanner Controller SC Sectional Center SCA Strategic Capital Acquisitions SCA Swiss Cracking Association SCAM Society of Criminals, Anarchists and Misfits SCAT Stromberg-Carlson Assistance Team SCC Specialized Common Carriers SCC Switching Control Center SCCP Signaling Connection Control Part SCCS Specialized Common Carrier Service SCCS Switching Control Center System SCD Software Chronicle Digest SCF Selective Call Forwarding SCF Selective Call Forwarding SCI Strategic Computing Initiative SCIT Semi-Conductor and Interconnect Technologies SCL Scandal! SCM Station Class Mark SCM Subscriber Carrier Module SCMP System Cooperative Marketing Program SCO Semiconductor Operations SCO Serving Central Office SCOT Stepper Central Office Tester SCOTS Surveillance and Control of Transmissions System SCP Service Control Point SCP Signal Control Point SCP Signal Conversion Point SCP System Control Program SCPC Signal Channel Per Carrier SCPD Supplementary Central Pulse Distributor SCR Selective Call Rejection SCSI Small Computer Storage Interface SCSI Small Computer Systems Interface SCU Selector Control Unit SCX Scoopex SCX Specialized Communications Exchange SD&D Specific Development & Design SDA Silicon Dream Artists SDA Software Design Automation SDC Software Distribution Center SDI Standard Disk Interconnect SDI Standard Drive Interface SDI Strategic Defense Initiative SDIS Switched Digital Integrated Service SDL Specification and Description Language SDLC Synchronous Data Link Control SDN Software Defined Network SDNS Secure Data System Network SDOC Selective Dynamic Overload Controls SDP Store Delivery Point SDR Store Data Register SDS Sales and Distribution Systems SDS Switched Data Service SDS Synchronous Data Set SDSC Synchronous Data Set Controller SE Syntax Error SE Society Elite SEA System Enhancement Associates SEAS Signaling Engineering and Administration System SEE Systems Equipment Engineering SEG Semiconductor Engineering Organization SEL Selector SES Service Evaluation System SF Single Frequency SF Supervision Control Frequency SFE Secure Front End SFI Society for the Freedom of Information SFMC Satellite Facility Management Center SG Supergroup SGA Sysops Guild Association SGML Standard Generic Markup Language SGMP Simple Gateway Management Protocol SHA Swedish Hackers Association SHIBNI Shipped But Not Invoiced SI Status Indicator SIA Semiconductor Industry Association SIC Silicon Integrated Circuit SID Satanic Incarnate of Doom SID System Identification SIDH System Identification Home SIG Special Interest Group SIM Service Industry Marketing SIMM Single Inline Memory Module SIN Software Innovation Network SIT Special Information Tones SK Sofdox Krackers SKISM Smart Kids Into Sick Methods SKN Skillion SLA Software Liberation Army SLA Service Level Agreement SLAC Stanford Linear Accelerator Laboratory SLC Service Level Contract or Software License Configurator SLC Subscriber Loop Carrier SLE Screen List Editing SLE Screening Line Editor SLF Smurf Liberation Front SLIC Subscriber Line Interface Card SLIC Subscriber Line Interface Circuit SLIM Subscriber Line Interface Module SLIP Serial Line Internet Protocol SLS Storage Library System SLU Serial Line Unit SM Switching Module SMAS Supplementary Main Store SMAS Switched Maintenance Access System SMASF Switched Maintenance Access System Frame SMASPU Switched Maintenance Access System Power Unit SMDF Subscriber Main Distributing Frame SMDI Storage Module Disk Interconnect SMDI Subscriber Message Desk Interface SMDR Station Message Detailing Recording SMDS Switched Multi-Megabit Data Service SME Society of Manufacturing Engineering SMG Super Master Group SMI System Management Interrupt SMP Symmetrical Multi-Processing SMS Self Maintenance Services SMS Service Management System SMS Station Management System SMSA Standard Metropolitan Statistical Area SMTP Simple Mail Transfer Protocol SMU Strategic Marketing Unit SMUT Syndrome's Mega Utility Team SNA System Network Architecture SNADS System Network Architecture Distribution Service SNB Stones 'n' Bones SNC Sonic SNET Southern New England Telephone SNMP Simple Network Management Protocol SNPC Software New Products Committee SO System Option SOAC Service Order Analysis Control SOC Service Oversight Center SOC Systems and Option Catalog SOCC Standard Optical Cable Code SOE Standards of Excellence SOE Standard Operating Environment SOH Service Order History SOI Spirit of Illusion SOL Sons Of Liberty. SONAR Service Order Negotiation and Retrieval SONDS Small Office Network Data System SONET Synchronous Optical Network SOP Standard Operating Procedure SOP Sum of the Pieces SOST Special Operator Service Treatment SOT the Sea Of Tranquillity SOUP Sea Otter Underground Productions SP Sharp Private SP Signal Processor SP Signaling Point SPA Software Publishers Association SPAN Space Physics Analysis Network SPC Southern Pacific Communications SPC Stored Program Control SPCS Stored Program Control Systems SPCSS Stored Program Control Switching System SPD Software Product Description SPDA Supplier Data Program SPG Software Product Group SPI Software Pirates Incorporated SPI Safeguarding Proprietary Information SPI Self-Paced Instruction SPI Serial Peripheral Interface SPLAT Society for the Preservation of Lasting Anarchy and Terrorism SPM Software Performance Monitor SPP Ship Plan SPS Self Preservation Society SPS Software Product Services SPUC/DL Serial Peripheral Unit Controller / Data Link SQL Structural Query Language SQL/DS Structured Query Language / Data System SQM Software Quality Management SR Skid Row SRA Selective Routing Arrangement SRC System Resource Center SRG Strategic Relations Group SRTC Service Right-to-Copy SS Secret Service SS Signaling System SS Special Services SS Standard System SSAN Social Security Account Number SSAS Station Signaling and Announcement Subsystem SSAS Station Signaling and Announcement System SSB Single-Side Band SSB Software Supply Business SSBAM Single-Side Band Amplitude Modulation SSC Special Services Carrier SSCP Subsystem Services Control Point SSD Solid State Disk SSG Software Systems Group SSG Strategic Studies Group SSG Suburban Survival Guide SSL Standard Security Label SSN Sysop Support Network SSN Social Security Number SSO Satellite Switching Office SSODB Secret Society of Dark Birds SSP Signal Switching Point SSP Switching Service Points SSP System Status Panel SSPC System Status Panel Controller SSPRU System Status Panel Relay Unit SSS Software Support Services SSS Strowger Switching System SSTTSS Space-Space-Time-Time-Space-Space Network ST Start STAR Systems and Technology Applications Requirements STC Serving Test Center STC Switching Technical Center STD Subscriber Trunk Dialing STDM Statistical Time Division Multiplexing STG Strategic Technologies Group STP Signal Transfer Point STS Shared Tenant Service STS Space-Time-Space Network STS Synchronous Transport Signal SUFF Suffix SUN Sight UnSeen SUNET Stanford University Network SVC Switched Virtual Circuits SVGA Super Video Graphics Array SVS Switched Voice Service SWB Southwestern Bell SWG Sub Working Group SWIFT Society for Worldwide Interbank Financial Telecommunications SWM Semiconductor Worldwide Management SWS Software Services SWAT Special Warez Acquisition Team SX Simplex Signaling SXS Step By (X) Step SYC System Control SYS System SYSGEN System Generation SOT The Sea of Tranquility SXS Step-by-Step SXS Strowger Switch