ITS

1. Incompatible Time-sharing System, an influential though highly idiosyncratic operating system written for PDP-6s and PDP-10s at MIT and long used at the MIT AI Lab. Much AI-hacker jargon derives from ITS folklore, and to have been ‘an ITS hacker’ qualifies one instantly as an old-timer of the most venerable sort. ITS pioneered many important innovations, including transparent file sharing between machines and terminal-independent I/O. After about 1982, most actual work was shifted to newer machines, with the remaining ITS boxes run essentially as a hobby and service to the hacker community. The shutdown of the lab's last ITS machine in May 1990 marked the end of an era and sent old-time hackers into mourning nationwide (see high moby). There is an ITS home page.

2. A mythical image of operating-system perfection worshiped by a bizarre, fervent retro-cult of old-time hackers and ex-users (see troglodyte, sense 2). ITS worshipers manage somehow to continue believing that an OS maintained by assembly-language hand-hacking that supported only monocase 6-character filenames in one directory per account remains superior to today's state of commercial art (their venom against Unix is particularly intense). See also holy wars, Weenix.

Look up its, it's, or ITS in Wiktionary, the free dictionary.

its, it's or its can mean:

• its, the possessive adjective and possessive pronoun form of the personal pronoun it
• it's, a contraction of it is or it has
• The "It's" man, a man with torn clothes and unkempt beard who appeared at the beginning of episodes of Monty Python's Flying Circus

Computing

• Incompatible Timesharing System, a computer operating system
• Intelligent tutoring system, an artificial intelligence system used for tutoring
• Internationalization Tag Set, a W3C recommendation for internationalizing XML

Central Civil Service, India

• Indian Telecommunication Service, an organised civil service of Government of India

Dance

• Improv Tribal Style Belly Dance, a sub-genre of Tribal Style Belly Dance

Education

• Institute for Transport Studies, University of Leeds, often abbreviated to ITS Leeds
• Institute of Technology, Sligo, Ireland
• Intelligent tutoring system, an artificial intelligence system used for tutoring
• International Theological Seminary
• Tenth of November Institute of Technology (Institut Teknologi Sepuluh Nopember), a public university in Surabaya, Indonesia

Organizations

• Identity, Tradition, Sovereignty, a former political grouping in the European Parliament
• Islamic Thinkers Society
• International Thespian Society, an honorary organization for high school and middle school theatre students
• International Tracing Service

Science and engineering

• Integrated Truss Structure, a component of the International Space Station
• Intelligent transportation system, add information technology to the transportation infrastructure
• Internal transcribed spacer, a section of DNA located within a set of ribosomal genes
• International Temperature Scale of 1990, (ITS-90), a temperature calibration standard for measurements in units of Kelvin and Celsius

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