Booting (BIOS) refers to the process of starting a computer, which entails executing a series of pre-defined procedures to initialize the system hardware and software. It's a specialized skill that involves understanding the computer's firmware and configuration settings, diagnostic tools, and troubleshooting techniques. The BIOS is an essential component of booting, as it serves as a low-level software layer that provides system-level functionalities, such as detecting and initializing hardware components, configuring system settings, and loading the operating system. Overall, proficiency in booting requires knowledge and experience in computer hardware, firmware, and software.