Network of computers. Abstract computer graphic showing many computers linked up in a network. This may depict a local area network (LAN) within a building or university campus, or it may illustrate the World Wide Web (WWW or Web). The Web is a global network of over 10,000 host computers connected by the Internet. Users of the Web are able to navigate between computers to access data held in hypertext files. The files are text documents as well as having other data such as pictures. Computer networks may be linked by telephone lines and satellite.