Researchers faced a challenge in combining user-friendly interfaces with heavy computational power. In the early 1990s, HyperCard offered an excellent graphical user interface (GUI) for users to input data, but it lacked the speed for complex mathematical calculations. Conversely, FORTRAN was the industry standard for high-performance computing but was difficult for non-technical users to operate.
: The Retinoic Acid Receptor (RAR) and research related to its resistance in leukemia cells (e.g., RaRF factor ). 21942 rar
: HyperCard read the output file and displayed the results to the user in the GUI. 21942 rar
: A Revenue Agent Report (RAR) , which is an official IRS document summarizing the results of a tax audit. 21942 rar