Chapter 18.2 Vocabulary Words by Matthew Reed

The global communication network that allows almost all computers worldwide to connect and exchange information.

An information system on the Internet that allows documents to be connected to other documents by hypertext links, enabling the user to search for information by moving from one document to another.

A software application for retrieving, presenting and traversing information resources on the World Wide Web.

A program that searches for and identifies items in a database that correspond to keywords or characters specified by the user, used especially for finding particular sites on the World Wide Web.

A local or restricted communications network, especially a private network created using World Wide Web software.

An intranet that can be partially accessed by authorized outside users, enabling businesses to exchange information over the Internet securely.

A person who uses computers to gain unauthorized access to data.

A packet of data sent by an Internet server to a browser, which is returned by the browser each time it subsequently accesses the same server, used to identify the user or track their access to the server.

A piece of code that is capable of copying itself and typically has a detrimental effect, such as corrupting the system or destroying data.