What is cathode-ray tube monitor?

Answer 1

CRT monitor.

The traditional tube type ones that used a picture tube rather than a liquid crystal display (LCD) to create the image.

They are considerably larger and heavier than their flat-panel LCD counterparts, though they are capable of producing better colors and contrast, and can display multiple resolutions and refresh rates perfectly without having to upscale or downscale.

Answer 2

CRT (Cathode Ray Tube) Monitors are the larger of the older Computer Monitors. Usually with a large back on them and normally heavy. They did have the advantage (earlier) of providing better black levels and higher refresh rates due to the technological advantage of using CRT technology VRS's early LCD methods.

Now days the difference is almost non-existent. You can find a vast array of older CRT monitors on Craigslist or various flee markets or older computer shops.

If it's flat and thin? No CRT.

If large, glass fronted and bulky? Probably a CRT.

Hope this helps!