TSO

TSO may refer to:

Science and technology

• Technical Standard Order, a minimum performance standard issued by the FAA for certain items used on civil aircraft
• Transmission system operator, an entity involved in electric power transmission or transmission of natural gas
• Trichuris suis, a species of whipworm, a parasite of pigs

Computing

• TCP segmentation offloading, a technique for increasing outbound throughput of high-bandwidth network connections
• Time Sharing Option, an interactive command line interpreter for IBM mainframe operating systems OS/360, SVS, MVS, OS/390 and z/OS
• Total Store Order, in microprocessor memory ordering

Music

• Taipei Symphony Orchestra
• Tasmanian Symphony Orchestra
• The Summer Obsession
• Tokyo Symphony Orchestra
• Toledo Symphony Orchestra
• Toronto Symphony Orchestra
• Trans-Siberian Orchestra

Transportation

• Transaero Airlines (ICAO airline designator code), a former Russian airline
• Tresco Heliport (IATA airport code), a former heliport in the Scilly islands
• Tourist Standard Open, a type of British Railways coach
• Marcos TSO, a sports car manufactured by Marcos Engineering Ltd
• Transportation security officer, a federal employee of the Transportation Security Administration, a division of the U. S. Department of Homeland Security

Other uses

• Threefold social order, a sociological theory involving the relationship of economy, polity and culture
• The Sims Online, a massively multiplayer game
• The Stationery Office, a British publisher
• Total shares outstanding, the stock held by investors, including restricted shares, as well as those held by the public; see shares outstanding

See also

• Tso (disambiguation)