Comment by hanslub42

My first PC (in 1993) ran on Linux (0.99). As it didn't have a sound card I used the PC speaker as one. It sounded very tinny but speech was understandable enough. Even in the newest kernels there is a driver (https://cateee.net/lkddb/web-lkddb/SND_PCSP.html) that exposes the speaker as an ALSA device. For sentimental reasons I will enable it next time I compile my kernel, though I don't expect much: the PC speaker is even more of an afterthought now than it was 33 years ago, and may even be a piezoelectric "buzzer" instead of a speaker with a coil and a paper cone.