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The 400 mini essays are geared to students who want an overview of the topic, a discussion of its significance, and a guide to further reading. Nearly every page contains a diagram, chart, or photograph.
Alphabetically arranged and classified into broad subject areas, the entries cover hardware, computer systems, information and data, software, the mathematics of computing, theory of computation, methodologies, applications, and computing milieu.
The works 600 entries, many of which represent the first reference treatment of this topic, are intended to make entries accessible to readers while maintaining a consistent level of technical information.