Computer will become in a size of hand and will contain information of a whole world

Douglas Engelbart : inventor, computer scientist
"In 20 or 30 years, you'll be able to hold in your hand as much computing knowledge as exists now in the whole city, or even the whole world." What if computers were hooked up to television-like screens that would sit on your desktop, so you could see and share information? What if hundreds of millions of people could publish and send messages and images around the world from “desktop computers” and then integrate and edit their work collaboratively? What if, as a result of this technology, people had the benefit of all the knowledge and wisdom in the world at their fingertips?"
Engelbart has always been before his time. He turned down a job at Hewlett Packard in the 1950s because the company didn’t want him to work on computers, he failed to convince Steve Jobs in the 1980s that it was a good idea to add a networking port to personal computers, and in the 1990s he walked out on Microsoft because they wanted him to do proprietary research on collaboration that Engelbart insisted should be available to the public.

Epiphany: The Vision that Launched The Computer Age