This document provides a brief history of personal computers and the Internet. It describes how the Internet originated as a network created by the US Department of Defense in 1969 called ARPANET. It then evolved to include email, chat, file transfers, and the World Wide Web, which was invented by Tim Berners-Lee in 1989. The document also discusses key developments in personal computers, such as the introduction of the microprocessor in 1971 and the first PC released by IBM in 1981.