1# Introduction to Hardware Compatibility
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4When you use C or C++ to develop OpenHarmony native libraries, hardware matters. OpenHarmony can run on devices of different architectures and from a variety of vendors. It is a great challenge to ensure the compatibility and consistent experience of applications that use OpenHarmony native libraries on different devices.
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7This section describes the OpenHarmony Application Binary Interfaces (ABIs). It defines the [ABI standards](ohos-abi.md) supported by OpenHarmony. It also describes how to use the [CPU features](cpu-features.md) in your applications without compromising compatibility. Finally, it provides an example to demonstrate how to better use [ARM Neon extensions](neon-guide.md).
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