320x200

320x200 refers to a digital image grid composed of 320 horizontal pixels and 200 vertical pixels. This resolution is most associated with the VGA era of personal computers and with arcade-to-PC ports in the late 1980s and early 1990s. In most contexts, 320x200 is discussed in conjunction with color depth values such as 4, 16, or 256 colors, depending on the hardware and graphics mode.

On IBM PC compatible hardware, the most common variant is Mode 13h, a 320x200 display with 256 colors, which uses one byte per pixel and requires 64 kilobytes of video RAM. Earlier or other hardware offered 320x200 with fewer colors (for example, EGA or CGA modes), typically in 4 or 16 colors, via different palettes and planar storage.

Aspect ratio: The resolution yields an aspect ratio of 16:10 (1.6). However, on 4:3 CRT displays the image may appear slightly stretched if not letterboxed, and software sometimes adjusted pixel aspect or windowed rendering.

History and usage: 320x200 became a standard target for many early DOS games and software due to memory constraints and the then-available graphics hardware. It was commonly used for titles with fast sprite-based graphics and for various demo scenes. The format also influenced early graphical user interfaces and image compression approaches.

Contemporary relevance: The resolution remains popular in retro computing communities and is often recreated for emulation, homebrew, and pixel art that aims to mimic late-1980s aesthetics. It is also a common test case for image and video processing libraries because of its small size and diverse color mode options.