The DH1011i supports a maximum resolution of 1600 x 1200 (UXGA). That's over six times the resolution of a 640 x 480 (VGA) projector, which is the most common resolution supported by projectors of this age and spec. 640 x 480 (VGA) is also supported by this data projector. This projector also support graphics resolutions of 1280 x 1024 (SXGA), 1360 x 768 (WXGA) and 800 x 600 (SVGA) and 1024 x 768 (XGA).
A 1600 x 1200 (UXGA) graphics resolution is actually the best supported resolution amongst all 18000:1 contrast ratio data projectors that have been on the market for a comparable time to the DH1011i.
A 640 x 480 (VGA) graphics resolution is the worst supported resolution amongst similar types of projector.