# Glossary

| **Acronym/Term** | **Description** |
| --- | --- |
| ABI | Application Binary Interface |
| ADB | Android Debug Bridge |
| API | Application Programming Interface |
| App | Application |
| ARM | Advanced RISC Machines |
| CPU | Central Processing Unit |
| DSP | Digital Signal Processor, in Qualcomm® AI Engine Direct context, it means DSP ealier than S888 |
| GPU | Graphics Processing Unit |
| HTML | HyperText Markup Language |
| HTP | Hexagon Tensor Processor, new Hexagon DSP after S888 |
| Mix-Precision | Mixed fp32 and int8/uint8 precision |
| N/A | Not Applicable |
| NN | Neural Network |
| Offline Prepare | Compile models in x64 host instead of in device executing phase |
| Op | Operator |
| PD | Protection Domain |
| QNN | Qualcomm Neural Network |
| RPC | Remote Procedure Call |
| SDK | Software Development Kit |
| Skel | Library run on Hexagon Processor |
| Stub | Library run on ARM Processor |
| TFLite | TensorFlow Lite |

Last Published: Aug 06, 2026

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