Home > General Knowledge > Important Dates and EventsWhen was the first version of the Windows operating system released?A. 1983 B. 1985 C. 1987 D. 1990Answer: 1985Additional Information: Windows 1.0 was released on November 20, 1985. Subjects: Important Dates and Events, General KnowledgeRelated MCQsWhen did the first email virus appear?When was the first successful prostatectomy performed?When did India gain independence?What year did the first female Prime Minister of the UK take office?What year was the first known use of the term ‘robot’?When was the first artificial intelligence program created?What year was the first cloning of a mammal, Dolly the sheep, achieved?When was the first version of the Internet Protocol (IPv4) established?What year was the first home video game console introduced?In what year did the Chernobyl disaster occur?In what year did the Internet become publicly accessible?What year was the first Android phone released?When was the first portable music player created?When did the Berlin Wall fall?When was the first commercial GPS launched?