History of Computing This website, provided by the Department of Computer Science at Virginia Tech, is a comprehensive collection of computer history information. It contains an impressive range of material and links, and is definitely worth checking out!
Early History The Department of Computer Science at Virginia Tech includes a page on the history of the ENIAC, which will definitely be of interest to you if you're curious about the first phases of hardware development.
History of Computing If you're looking for a brief overview of computer history, you will want to see this website. The site contains many links for more information on specific topics.