TOS

TOS may refer to:

General

• Terms of service, rules by which one must agree to abide by in order to use a service; unless in violation of consumer protection laws, such terms are usually legally binding

Computing

• TETRA Optimization Solution, TOS is network quality measurement tool for optimization and coverage control to minimize RF Gap area. It supports Hand-Held type for customer’s convenience at in-building
• Tape Operating System, predecessor to IBM's Disk Operating System
• Atari TOS, the operating system of the Atari ST computers
• TinyOS, an open-source operating system designed for wireless embedded sensor networks
• Talend Open Studio, an open source ETL tool
• TOSLINK, a standardized optical fibre connection system
• Type of service, policy-based routing
• Terminal Operating System, Enterprise software that manages all aspects of a marine port terminal operation
• Top Octave Synthesizer, an integrated circuit used in analog electronic keyboards to generate the tones of a musical scale
• Tencent OS, a system developed by Tencent Holdings Limited

Chemistry

• Tosyl, a chemical compound
• TOS, an abbreviation for Gy's sampling theory, a theory about the sampling of materials

Video games

• Tower Of Saviors, a game published by Mad Head Limited in 2013
• Tales of Symphonia, a 2003 RPG for the Gamecube published by Namco
• Tales of Symphonia: Dawn of the New World, sequel to Tales of Symphonia
• Town of Salem by BlankMediaGames released in 2014, Dec 15

Entertainment

• title of show, a Broadway musical
• Star Trek: The Original Series, a 1960s science fiction television series
• Battlestar Galactica (1978 TV series), a 1970s science fiction television series
• The Objective Standard, an American journal on culture and politics written from the Objectivist perspective
• T.O.S: Terminate on Sight, a 2008 album by G-Unit

Medicine

• Thoracic outlet syndrome, a syndrome involving compression of the superior thoracic outlet, leading to the compression of the neurovascular bundle passing between the anterior scalene and middle scalene
• Toxic oil syndrome, the name given to a disease outbreak in Spain in 1981, which killed over 600 people

Organizations

• Oceanography Society, a non-profit society founded in 1988, based in Rockville, Maryland, U.S. and incorporated in the District of Columbia
• Theosophical Order of Service, an international organization founded in 1908 by Annie Besant, the second International President of the Theosophical Society
• Temple of Set, an initiatory occult society claiming to be the world's leading left-hand path religious organization; it professes Setian philosophy and magical practice
• Tennessee Ornithological Society

Other uses

• TOS-1, a Soviet thermobaric weapon system nicknamed 'Buratino'
• Tam o' Shanter (cap), a Scottish bonnet, worn in place of a beret by certain military units
• Tromsø Airport, in the northern city of Tromsø, Norway
• Turbine Overhaul Services , a company in Singapore which specializes in the repair and refurbishment of commercial jet engine turbine airfoils.
• Technical Operations Supervisor, business term for supervisors of technicians or specialists.
• Television Oita, a television station in Oita, Oita Prefecture, Japan