Evans entered the field of computer science after joining the United Kingdom National Physical Laboratory in the mid 1950s. In 1979, he wrote a book on the oncoming microcomputer revolution: The Mighty Micro: The Impact of the Computer Revolution, after which the BBC produced a six-part TV series, written and presented by him, which was aired posthumously. His other books include Cults of Unreason, an entertaining and perceptive study of scientology and other pseudoscience, and Landscapes of the Night - how and why we dream.
Dr. Evans also had a long-standing interest in science fiction. He edited two anthologies of psychological sf/horror stories, Mind at Bay and Mind in Chains, and was a contributing editor to Omni.
There is also a British science fiction author named Christopher Evans (born 1951); author of Capella's Golden Eyes (1982?), Mortal Remains (1996), Ice Tower (2000), and co-editor with Robert Holdstock of two original sf anthologies, Other Edens (1987) and Other Edens II.