What is the primary function of GIS?

The primary function of Geographic Information Systems (GIS) is to store information linked to geographic positions. This technology allows users to visualize, analyze, and interpret spatial and geographic data. By connecting various data sets to specific locations on the Earth's surface, GIS can effectively manage and retrieve large amounts of data. This capability is crucial in various fields, including urban planning, environmental science, and resource management, where understanding the geographic context of data is essential.

The other options indicate functions that are either more specific or not representative of the core purpose of GIS. For instance, while calculating land areas is a task that can be performed using GIS, it is not the primary function. Similarly, managing financial data or performing statistical analysis of timber markets involves specialized applications or tools that may incorporate GIS but do not capture the full spectrum of what GIS is designed to do.