Technologies frequently used in Geographical Information Systems (GIS) include GPS for positioning, remote sensing for gathering aerial data, and spatial analysis tools for interpreting data sets. GIS integrates data from various sources to create visual maps and models that represent geographic patterns and relationships. It employs software platforms that can visualize and analyze spatial data effectively, allowing for enhanced decision-making in fields like urban planning, environmental management, and transportation. These tools enable organizations to summarize complex data into actionable insights.