.io
The Internet country code top-level domain (ccTLD) .io is assigned to the British Indian Ocean Territory.
The .io domain is administered by the Internet Computer Bureau, a domain name registry company based in the United Kingdom.
Google currently treats .io as a generic top-level domain (gTLD) because "users and webmasters frequently see [the domain] more generic than country-targeted".
History
The .io domain extension has existed since 1997, and has grown steadily in popularity ever since. .io domains now compose 0.1% of all websites.
The first IO-related domain to be registered was the domain data-io.com, which when it was registered in late 1986 was the 45th domain name ever to be registered.
The first .io domain was not registered until 1998, when Levi Strauss & Co. registered the domain levi.io.
Specifications
Labels for .io domains may only contain alphanumeric characters and hyphens and must be between 3 and 63 characters long. Domain names cannot begin with, or end with, a hyphen symbol, and may not contain two consecutive hyphens. The entire domain name may not contain more than 253 characters.
Io (programming language)
Io is a pure object-oriented programming language inspired by Smalltalk, Self, Lua, Lisp, Act1, and NewtonScript. Io has a prototype-based object model similar to the ones in Self and NewtonScript, eliminating the distinction between instance and class. Like Smalltalk, everything is an object and it uses dynamic typing. Like Lisp, programs are just data trees. Io uses actors for concurrency.
Remarkable features of Io are its minimal size and openness to using external code resources. Io is executed by a small, portable virtual machine.
History
The language was created by Steve Dekorte around March 7, 2002, after trying to help a friend, Dru Nelson, with his language, Cel. He found out that he really didn't know much about how languages worked, and set out to write a tiny language to understand the problems better.
Philosophy
Io's goal is to explore conceptual unification and dynamic languages, so the tradeoffs tend to favor simplicity and flexibility over performance.
Io (mythology)
Io (/ˈaɪ.oʊ/; Ancient Greek: Ἰώ [iːɔ̌ː]) was, in Greek mythology, one of the mortal lovers of Zeus. She was the daughter of Inachus and the nymph Melia. She was an ancestor of Cadmus and Danaus.
Legend
In most versions of the legend, Io was the daughter of Inachus, though various other purported genealogies are also known. According to some sources her mother was the nymph Melia, daughter of the Oceanus. The 2nd century AD geographer Pausanias also suggests that she is the daughter of Inachus and retells the story of Zeus falling in love with Io, the legendary wrath of Hera, and the metamorphosis by which Io is becoming a cow. At another instant several generations later, Pausanias recounts another Io, descendant of Phoroneus, daughter of Iasus, who himself was the son of Argus and Ismene, the daughter of Asopus, or of Triopas and Sosis; Io's mother in the latter case was Leucane. Io's father was called Peiren in the Catalogue of Women, and by Acusilaus, possibly a son of the elder Argus, also known as Peiras, Peiranthus or Peirasus. Io may therefore be identical to Callithyia, daughter of Peiranthus, as is suggested by Hesychius of Alexandria.
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