In the 1960s and 70s, resource companies installed mainframe computers in hopes of improving worker productivity. While these computers could rapidly process large amounts of data and generate high-quality graphic output, they were rigid in their approaches to data processing operations, required highly-trained users, and were expensive "to install and use. As a result, computer-assisted data analysis methods were not used on a daily basis for most technical project needs.

Today, computer workstations can still rapidly process large amounts of data, and quickly generate presentation-quality maps, cross sections and other types of data displays; however, they are now desktop in size, user+fr i endLy to operate, and inexpensive to install. More importantly, these new tools offer full, interactive control over all phases of the data analysis process, i.e., professionals can sit at their desk and quickly access diverse types of digital data, manage data according to individual needs, perform all types of modeling studies, and construct and customize sophis-ticated data d i spLays, Because of these characteristics, microcomputer workstations have become common-place tools in the offices of professionals in both large and small resource companies.

This paper will describe how .consulting geologists can analyze exploration data on microcomputer workstations. More specifically, discussion topics will include hardware requirements and available software capabilities; sources of numerical data, data access methods, and data formats; examination of GIS operations, i.e. how to manage, retrieve, model, and display numerical data; and, review of commonly encountered pitfalls.

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