Haven't used a Model M in 25 years but this comment brought me back to that time, wondering what the apparent speaker grill underneath was. For those who are al

Haven't used a Model M in 25 years but this comment brought me back to that time, wondering what the apparent speaker grill underneath was. For those who are also curious, here's what Wikipedia says: >Until the late 4th-generation variants, most Model Ms have a 1.25" slotted, circular speaker grille in their bottom surfaces. Relatively few contain an actual speaker, however, which was useful only for sounding beep codes on older terminal systems. The most common P/Ns with speakers are 1394540 and 51G872, made for RS/6000 UNIX workstations.