Count Zero is a science fiction novel by American-Canadian writer William Gibson, originally published in 1986. It presents a near future whose technologies include a network of supercomputers that created a "matrix" in "cyberspace", an accessible, virtual, three-dimensionally active "inner space", which, for Gibson, was seen as being dominated by violent competition between small numbers of very rich individuals and multinational corporations. The novel is composed of a trio of plot lines that ultimately converge.