What does TOPS stand for?

- The Operational PERT System

- The Optimum Publishing System - IBM Corp.

Tactical Onboard Processing System - British rail (MLEX)

Tactical Optical Projection System (NVT)

Tailored Owner Protection System - Automotive optional warranty

Take Off Pounds Sensibly (EA)

Tapes and Optical Products

Target Oilfield Pipe & Supply Company (EFIS)

Task-Oriented Processing System (SAUS)

Technical Order Page Supplement - Air Force

Teenage Opportunity Programs in Summer (SAUS)

Telecommunications Ordering and Pricing System - Communications term (DCT)

Telemetry On-Line Processing System - Computer science

Telemetry Operations (SAUS)

Telephone Order Personalities and Smiles - Organization of chief telephone operators

Telephone Order Processing System

Telephone Order Purchasing System (MCD)

Teleregister Omni Processing and Switching - Computer science

Teletype Optical Projection System (IEEE)

Tera-Operations Per Second (SAUS)

Terminal-Oriented Planning System (MCD)

Terrestrial Observation and Prediction System (GIS)

Test and Operating System (SAUS)

Tested Overhead Projection Series - Education

Testing and Operating System

Test of Problem Solving - Intelligence test

Test Operations Procedures - Army

Test Oriented Programming System (SAUS)

Theatre Organ Preservation Society - British

The Online Publishing System (NITA)

The Operating Planning System (SAUS)

Thermal Noise Optical Optimization Communication System - NASA

Thermodynamic Ocean Prediction System - Navy (GFGA)

Thermoelectric Outer Planet Spacecraft - NASA

Thruway Oversize Permitting System

Time-Sensitive Operational Planning System - Military technology (DDF)

Time-Sharing Operating System - Computer science

Top One Percent Society (EA)

Tops Appliance City - NASDAQ symbol (SAG)

Top Sound International, Inc. (SAUS)

Total Ocean Profiling System - Marine science

Total Operating System (SAUS)

Total Operation Processing System (SAUS)

Total Operations Processing System - Computer science

Total Organ Perfusion System

Total Ozone Portable Spectroradiometer - Measures ozone layer

Total Personnel Service

Total Planning System (SAUS)

Tour Operating Software System (SAUS)

Tour Outer Planet Spacecraft (SAUS)

Toward Other Planetary Systems - NASA

Trade Observation Pairing System (ACAE)

Traffic Operator Position System - Telecommunications (TEL)

Training Operations and Planning Station (MCD)

Training Opportunities Schemes - Department of Employment - British

Transcendental Network - Centram Systems West, Inc. - Berkeley, CA - Telecommunications (TSSD)

Transcendental Operating System (RALS)

Transistorized Operational Phone System (MCD)

Transparent Operating System - Computer science (CDE)

Transportation Operational Personal property Standard system (SAUS)

Transportation Operational Personal Property System - Army

Treatment Outcome Prospective Study

Trioctylphosphine Sulfide (SAUS)

Truck Ordering and Pricing System

United States Travelers' Overseas Personalized Service - Also known as USTOPS