Re: Turn Your Radio On ...

On 2/2/25 1:10 AM, Charlie Gibbs wrote:

On 2025-02-02, rbowman <bowman@montana.com> wrote:
 

Ah, but NTSC had a far reaching impact that had nothing to do with TVs.
Because of the TV consumer market 3.57954 MHz crystals were dirt cheap and
showed up everywhere. I believe some variant of the 8253 PIT still lives
in PCs and runs at 1/3 or 1.19318 MHz. Roll the 16 bit counter over and
you had the 55 msec tick.

 The Amiga's clock ran at 7.16 MHz.  As a bonus, they could easily generate
NTSC video.  They were used in a lot of cable TV stations to generate
on-screen schedules, etc.

   Had a local cable network with a 'community info'
   channel. Every so often it would crash - and you
   would see a Commodore-64 prompt. So, I guess
   there were NTSC generators even before Amiga  :-)
   But Amiga was more convenient.