我看过很多90年代中期的笔记本, 运行DOS程序,或者在DOS实模式下,玩DOS游戏,屏幕不能全屏,屏幕周围有一圈黑边!
感觉,DOS画面是缩了一圈的感觉!! 2000年以后的笔记本很少有这种情况了~~

I've seen many mid-1990s laptops. When running DOS programs or playing DOS games in real-mode DOS, the screen isn't full screen, and there are black borders around the screen!
It feels like the DOS screen is shrunk by a circle! ~~ Laptops after the year 2000 rarely have this kind of situation~~
:P