19 Jun
2008
19 Jun
'08
9:15 p.m.
On Thu, Jun 19, 2008 at 11:07 PM, Rick Bensene <rickb at bensene.com> wrote:
I believe, but I'm not positive, that the a small
amplifier with a
speaker were placed on one of the bits of a given register in the
machine, and the music program simply toggled the bit at various rates
to create different notes.
As seen on this (poor quality) video of the PDP-1 at the Computer
History Museum!