This is way out in left field.<BR><BR>When I used an SGI Irix on an O2 back in the late '90s, clicking on an icon made a satisfying metallic noise. It was like a "ka-chunk" noise, if I remember ...

SGI serial <> DB25 wiring diagram <BR><BR>You should be able to use a PC>Mac serial cable too though its probably not too easy to find one of those these days.<BR><BR>Assuming you have Windows on that ...