About 20 years ago, before I'd even bought my first computer, I discovered that Kodak was providing the service of scanning one's slides and transferring the digital files to a CD, which they called PhotoCD. They also marketed a PhotoCD player which could connect to a Standard Definition TV.
So I sent in a few hundred of my slides for scanning, and took some joy in the convenience of being able to view these old photos on the TV without the hassle of setting up a projector and screen.
However, the novelty soon wore off as a result of the low resolution and small size of my TV. I recall around that time, that it was claimed certain models of inkjet printers were reaching 'near' photographic quality, so I set about investigating what quality of computers were available for photographic work.
Whenever I visited a computer store in search of the best computer system I could afford, I took a PhotoCD disc with me so I could view the results on the monitor. I was always disappointed in the results. Most of the video cards in those days didn't produce 24 bit color, and the monitors were generally low resolution.
I recall being both puzzled and disappointed that none of the systems available were capable of displaying the full resolution of a Kodak PhotoCD scan, which was a mere 6 mp, or 18 MB.
Well, finally, 20 years later, we now have a monitor or TV that can display the full resolution of my PhotoCD images. That's progress.