What kind of test are you performing if you are checking software compatibility with various PC brands?

When checking software compatibility with various PC brands, you are performing a portability test. Portability testing focuses on evaluating how well software can function across different environments, including various hardware configurations and operating systems. It assesses the ease with which the software can be transferred from one environment to another without requiring significant alteration or reconfiguration.

In this context, looking at compatibility across different PC brands means understanding how the software behaves when deployed on different hardware setups, which is a fundamental aspect of portability. This type of testing ensures that the software can operate successfully on various configurations and does not have any issues that would hinder its use on a particular brand or model.

Performance tests, on the other hand, are concerned with how the software behaves under stress or load, measuring responsiveness, speed, and scalability rather than compatibility across different systems. Processor tests would typically focus specifically on evaluating the software's interaction with the CPU, which is not relevant to assessing compatibility with various brands. Functional tests validate that the software operates according to specified requirements but do not focus specifically on compatibility with different hardware or platforms.