World Wide Web. Abstract artwork of the World Wide Web (WWW) or Internet, a global computer communi- cation network. The image shows the Earth on a computer screen, spherical electronic circuit boards, and a wire connected to a grid. Computers communicate with each other over the Internet using a device called a modem to transmit signals through telephone lines. The information held on the WWW, which forms part of the Internet, is held on computers across the world. This information is accessed by using a computer program, known as a browser, which allows users to navigate between computers.