Born in Minehead, western England, on Dec. 16, 1917, the son of a farmer, Arthur Charles Clark became addicted to science fiction after buying his first copies of the pulp magazine "Amazing Stories" at Woolworth's. He read English writers H.G. Wells and Olaf Stapledon and began writing for his school magazine in his teens.

Clarke went to work as a clerk in Her Majesty's Exchequer and Audit Department in London, where he joined the British Interplanetary Society and wrote his first short stories and scientific articles on space travel.

It was not until after the World War II that Clarke received a bachelor of science degree in physics and mathematics from King's College in London.

In the wartime Royal Air Force, he was put in charge of a new radar blind-landing system.

But it was an RAF memo he wrote in 1945 about the future of communications that led him to fame. It was about the possibility of using satellites to revolutionize communications — an idea whose time had decidedly not come.

Clarke later sent it to a publication called Wireless World, which almost rejected it as too far-fetched.

Clarke married in 1953, and was divorced in 1964. He had no children.

He moved to the Indian Ocean island of Sri Lanka in 1956 after embarking on a study of the Great Barrier Reef. He discovered that scuba-diving approximated the feeling of weightlessness that astronauts experience in space, and he remained a diving enthusiast, running his own scuba venture into old age.

"I'm perfectly operational underwater," he once said.

Clarke was linked by his computer with friends and fans around the world, spending each morning answering e-mails and browsing the Internet.

At a 90th birthday party thrown for Clarke in December, the author said he had three wishes: for Sri Lanka's raging civil war to end, for the world to embrace cleaner sources of energy and for evidence of extraterrestrial beings to be discovered