The document provides an introduction to the internet for beginners. It explains that the internet is a network of networks that connects millions of computers globally. The internet originated as a project of the US Department of Defense called ARPAnet to allow researchers and military personnel to communicate in an emergency. The internet functions through local area networks that connect computers within a small geographic location, and wide area networks that connect local networks over longer distances using telephone lines or radio waves, with the internet representing the largest wide area network. All computers on the internet operate as either servers that provide resources or clients that access resources.