History of the web in the 1970's By lessjaci Jan 20, 1971 Ray Tomilson invents the first email. Jul 20, 1975 First commercially personal computer Tha Altair 8800 is introduced as a kit Jan 20, 1976 Apple computer founded founded by Steve Jobs and Steve Wozniak May 29, 1978 first mass marketed Personal computer for Apple II is launched Sep 20, 1978 Spam is created