viewing a photo on a CRT in 16 million colors is still 100% better than
having only 16 colors...<G>
There was a thing that came out in 1979/1980 called an I2S model 70 image
processor. It used (in at least one configuration) _30_ bits per pixel,
although only at a resolution of 512*512 pixels.
If you're only used to home micros I can understand why you think old machines
can't display 'photo-quality' images, but there were plenty of larger
that are now turning up second-hand at prices that collectors can afford that
have significant graphics abilities.