Procedural programming foundational language, focused on low-level memory control and high performance. Widely applied in system kernels, embedded device drivers, and industrial control systems.

Multi-paradigm language extending C, supporting OOP, generic programming, and low-level optimization. Used for game engines, desktop software, and high-performance computing (C++17/20 standards).

Cross-platform C++ GUI framework, enabling consistent interfaces across Windows/macOS/Linux. Integrates modules for network communication, SQL, and multimedia development.

Cross-platform build configuration tool, generating platform-specific build files (Makefiles, VS solutions) for C/C++ projects. Simplifies multi-architecture compilation and dependency management.

Open-source multimedia processing toolkit, supporting audio/video encoding, decoding, transcoding, and streaming. Used in video editors, live broadcast systems, and media format converters.

Cross-platform 3D graphics rendering API, enabling hardware-accelerated graphics. Used for game development, scientific visualization, and 3D model display (with GLSL shader support).

Ubuntu-based Linux distribution administration, covering shell scripting, APT package management, service deployment, and server security configuration for development environments.

Windows Subsystem for Linux 2, providing a full Linux kernel environment on Windows. Facilitates cross-platform development, Linux tool usage, and Docker container integration.

JavaScript runtime based on V8 engine, enabling non-blocking I/O for server-side development. Ideal for RESTful APIs, real-time chat systems, and microservice architectures.

Open-source relational database management system (RDBMS), supporting ACID transactions, indexing, and master-slave replication. Used for web app data storage, user systems, and analytics.