Computer-mediated electronic communications.
From the first element of cybernetics, the science of communications and automatic control systems, itself derived from Greek kubernētēs, steersman.
Cyber‑ is one of the newest and in the 1990s also one of the most fertile combining forms in the language. The science-fiction writer William Gibson coined cyberspace in the early 1980s to describe a shared but intangible virtual reality space within computers. At about the same time cyberpunk came into being to describe the genre characterised by William Gibson's work, set in lawless future societies dominated by computer technology.
When public interest in the Internet blossomed in the early 1990s, journalists and commentators borrowed cyber‑ to refer to the online world, shifting its sense so it referred to electronic communications in general. This form became fashionable in the mid-nineties, with many hundreds of coinages recorded; only a few are likely to have a lasting place in the language. Cyber, as an adjective for electronic communication, is now also a word in its own right. For examples, See also e‑1.
Examples of words in cyber‑
art using computers or computer visualization methods
electronic money stored in a smart card
either a member of the online Internet community, or someone who uses the Net to exercise democratic rights in their community, say through electronic discussion forums or electronic voting
an older term for electronic commerce (see e‑1)
in theory any criminal activity carried out using electronic communications, but principally electronic theft of money or identity or industrial espionage
another name for electronic democracy, exercised by a cybercitizen
a high-tech hippy who embraces technology
either someone versed in the law applying to electronic communications, or one who studies its implications for the law
a sub-genre of science fiction, relating to lawless future societies dominated by computer technology
buying things via the Net, electronic shopping
the notional environment in which communication over computer networks occurs (adjective cyberspatial)
registering an Internet domain name with the sole purpose of selling it on at a profit
someone who surfs the Internet
the use of electronic techniques to cause damage to the computer systems or communications of an opposition group
using electronic methods to knock out the command systems of an enemy