What does Boxing Day have to do with boxing?
1610s, "discourse or treatise on an art or the arts," from Greek tekhnologia "systematic treatment of an art, craft, or technique," originally referring to grammar, from tekhno- (see techno-) + -logy. The meaning "science of the mechanical and industrial arts" is first recorded 1859. High technology attested from 1964; short form high-tech is from 1972.
Marketroid jargon for "software", "hardware", "protocol" or something else too technical to name.
The most flagrant abuse of this word has to be "Windows NT" (New Technology) - Microsoft's attempt to make the incorporation of some ancient concepts into their OS sound like real progress. The irony, and even the meaning, of this seems to be utterly lost on Microsoft whose Windows 2000 start-up screen proclaims "Based on NT Technology", (meaning yet another version of NT, including some Windows 95 features at last).
See also: solution.