title: Cos
text: # Cos
  
  Cos, COS, CoS, coS or Cos. may refer to:
  
  ## Mathematics, science and technology
  
  * Carbonyl sulfide
  * Class of service (CoS or COS), a network header field defined by the IEEE 802.1p task group
  * Class of service (COS), a parameter in telephone systems
  * Cobalt sulfide
  * COS cells, cell lines COS-1 and COS-7
  * Cosine, a trigonometric function
  * Cosmic Origins Spectrograph, a Hubble Space Telescope instrument
  
  ## Operating systems
  
  * COS (operating system), a Chinese mobile OS
  * Cray Operating System
  * Chippewa Operating System, from Control Data Corporation
  * Commercial Operating System, from Digital Equipment Corporation
  * GEC COS
  
  ## Places
  
  * Cos, Ariège, France
  * Cos or Kos, a Greek island
  * COS, IATA code for Colorado Springs Airport, Colorado, US
     * Colorado Springs, Colorado, a US city, derived from its airport's code
  * Gulf of Cos, Aegean Sea
  * Villa de Cos, Zacatecas, Mexico
  * Cosio Valtellino (Cös), Lombardy, Italy
  * COS, UNDP country code of Costa Rica
  
  ## Organizations, societies and churches
  
  * Charity Organization Society
  * Children's Orchestra Society, New York City, US
  * Church of Satan, a religious organization
  * Church of Scientology
  * Church of Scotland
  * Commandement des Opérations Spéciales, coordinating French special forces
  * Community of Science, an online database
  * Company of Servers, Anglican altar servers
  * Cooper Ornithological Society, California, US
  
  ## Universities and schools
  
  * College of the Sequoias, California, US
  * College of the Siskiyous, California, US
  
  ## Other uses
  
  * Childhood onset schizophrenia
  * Roman consul, a political office in Ancient Rome
  * COS, a British fashion brand
  * Cos lettuce
  * Martín Perfecto de Cos (1800–1854), Mexican general
  * Consequence of Sound (now Consequence), a New York, US online magazine
  * Cos (television series), 1976, hosted by Bill Cosby
  * Space Operations Command (Italy) (Comando delle Operazioni Spaziali)
  