Vladivostok. July 4. VOSTOK-MEDIA – The inventor of one of the most popular and convenient computing devices - a computer mouse Douglas Engelbart died. American has died at his home in California. He was 88 years old.The inventor’s death was reported by his daughter, Christina who is the author of a biography of the inventor, reports Associated Press. The wife of the scientist Karen told New York Times, that the cause of death was renal failure.