Cyberspace

[Merna]

Unlike most computer terms, cyberspace does not have a standard, objective definition. Instead, it is used to describe the virtual world of computers. For example, an object in cyberspace refers to a block of data floating around a computer system or network. With the advent of the Internet, cyberspace now extends to the global network of computers. So, after sending an e-mail to your friend, you could say you sent the message to her through cyberspace. However, use this term sparingly, as it is a popular newbie term and is well overused.
The word cyberspace is credited to William Gibson, who used it in his book, Neuromancer, written in 1984. Gibson defines cyberspace as a consensual hallucination experienced daily by billions of legitimate operators, in every nation, by children being taught mathematical concepts... A graphical representation of data abstracted from the banks of every computer in the human system. Unthinkable complexity. Lines of light ranged in the non-space of the mind, clusters and constellations of data (New York: Berkley Publishing Group, 1989), pp. 128.

[Kai]

the internet considered as an imaginary area without limits where you can meet people and discover information about any subject:

[Rihanna]

The notional environment in which communication over computer networks occurs.