Final answer:
Cross-platform compatibility is the feature of a computer program that allows it to function on different operating systems.
Step-by-step explanation:
The feature of a computer program that allows it to function on various platforms is called cross-platform compatibility. Cross-platform compatibility refers to the ability of a program to run on different operating systems such as Windows, Mac, and Linux. This is achieved through the use of programming languages and frameworks that are portable and can be interpreted or compiled on different platforms.
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