I have an Acorn RiscPC computer. That means it is basically an Acorn computer running RISC OS 3.7 but also has a PC card containing a 486 chip. I use a 17 inch monitor and I usually use a 1280 x 1024 resolution window. This allows me to have several applications visible on the screen simultaneously. I can easily see if there is a spelling mistake within text having a Times font of 10 points.
Much smaller text is quite readable, of course.
I am squeezing everything on to a 410 Mbyte hard disc at present. I have recently started to write applets and applications in Java. I only write trivial programs, nothing which would interest others unless they want to know how I have accomplished something. Thus, a typical application written in C puts an icon on the icon bar which when clicked with the menu button gives a menu having Quit and Info items, the Info item opening a window giving brief information about the application. When I click on the icon with the Select or the Adjust button a resizeable window opens which usually displays graphical items, and sometimes includes text using outline fonts.