Many users of computer technology—and for that matter, many technology creators and administrators—complain about the rapid pace of change in information technology. The most recent example of a new technology trend bursting upon the scene is cloud computing. Setting a record for going from “what is it?” to “I’ve got to have it,” cloud computing for many people seems to represent a revolution in how computing will be done in the future. Cloud computing is the latest—and hottest—technology trend going. Many people see it as crucial to the next step in enterprise computing, and an inevitable development in internal data centers. But what is it? This article provides an introduction to cloud computing.