Displays and display adapters
Windows 1.0 supported a wide range displays and display adapters available at the time. Because it was a true GUI, graphics mode was mandatory (i.e. you can't run Windows on an MDA display). In terms of technology, Windows 1.0 supported CGA, Hercules, EGA and VGA displays in both monochrome and color configurations (where applicable).
Supported displays can be classified into two groups:
These displays and adapters were usually based on official IBM standards (CGA, EGA, etc.), with minor enhancements to differentiate better from the competition and a reasonable price tag.
These were used mostly for desktop publishing in professional environments. Generally speaking they're proprietary solutions offering very high resolution graphics (often at the expense of color support) at a premium cost.