Final answer:
The most valuable part of a high-end UNIX server used for research and development is the information on the server.
Step-by-step explanation:
The most valuable part of a high-end UNIX server used for research and development is the information on the server. While the server itself is important for processing and storing the data, it is the information that holds the most value. The research and development department relies on the data stored on the server for their projects, analysis, and decision-making.