<P> Cyberspace . A consensual hallucination experienced daily by billions of legitimate operators, in every nation, by children being taught mathematical concepts...A graphic representation of data abstracted from the banks of every computer in the human system . Unthinkable complexity . Lines of light ranged in the nonspace of the mind, clusters and constellations of data . Like city lights, receding . </P> <P> Now widely used, the term has since been criticized by Gibson, who commented on the origin of the term in the 2000 documentary No Maps for These Territories: </P> <P> All I knew about the word "cyberspace" when I coined it, was that it seemed like an effective buzzword . It seemed evocative and essentially meaningless . It was suggestive of something, but had no real semantic meaning, even for me, as I saw it emerge on the page . </P> <P> Don Slater uses a metaphor to define cyberspace, describing the "sense of a social setting that exists purely within a space of representation and communication...it exists entirely within a computer space, distributed across increasingly complex and fluid networks ." The term "Cyberspace" started to become a de facto synonym for the Internet, and later the World Wide Web, during the 1990s, especially in academic circles and activist communities . Author Bruce Sterling, who popularized this meaning, credits John Perry Barlow as the first to use it to refer to "the present - day nexus of computer and telecommunications networks ." Barlow describes it thus in his essay to announce the formation of the Electronic Frontier Foundation (note the spatial metaphor) in June, 1990: </P>

The term cyber security was coined in which year