McGraw-Hill Guide to Electronic Research

What You Need to Know Before You Start

It's exciting and easy to search for information using computers--often to the point that it doesn't feel like work at all. However, it can also be frustrating and time consuming if you don't know what to expect. If you're new to computers--or if you're familiar with only one system--read this chapter before you start.

Information is available via computer in several ways:

Definitions: Some Key Terms

A CD-ROM is a disk that looks just like an audio CD, but it contains computer programs or data--often the equivalent of whole shelves of books or periodicals. CD-ROM versions of encyclopedias, dictionaries, atlases, and other reference works are available in libraries and also for consumer purchase. Sometimes you are connecting to a CD-ROM on the Internet. ROM means "Read Only Memory" since the data on a CD-ROM is fixed (can't be changed), unlike the fluidity of information you encounter online.

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