A few things: Everything not being 4:3 screens. I found it better for programming than everything being cinematic screens. Back when monitor manufacturers were racing to make better / higher resolution monitors, instead of just leaving it at 1080p / 4k / whatever the current standard good enough for movies is. The GMail interface before it started auto-converting the textarea to HTML when edited externally. Console g…
This! I concentrate much better on old laptop with 4:3 screen. I have one single window open, no browser, not documentation, no chat windows, no email. The laptop wouldn't even handle all programs at the same time, 512MB of RAM.