A computer including HI-FI stereo is provided. The BIOS of the computer including HI-FI stereo in the embodiment includes a function menu that shows selections of HI-FI stereo and general-purpose computer when the computer including HI-FI stereo is just booted up. The HI-FI stereo function is set up bypassing the routine procedure that is used to activate the operating system of the computer unit and plays associated AV data immediately, while the operating system is activated for setting up a general-purpose computer if the general-purpose computer selection is selected.