Using a CGA Display Adapter with Windows

• Microsoft Windows operating system versions 2.x, 3.0, 3.0a, 3.1, 3.11

SUMMARY

If you have a CGA or MCGA graphics card, Microsoft Windows appears in black and white.

To have Windows display in color, an EGA card (with 64K or 256K memory), VGA, Super VGA, or XGA is required.

Under Microsoft Windows version 3.1, CGA monitors cannot accommodate the size of specific dialog boxes. Two examples are the About dialog box from the Help menu, and the Desktop dialog box from Control Panel. There is no workaround for this problem. Full CGA support has not been included in Windows 3.1.

MORE INFORMATION

Windows requires a minimum screen resolution of 640 x 200 (640 pixels wide by 200 pixels high). In that resolution, the CGA card provides only one color on a black background (which in Windows is white on black).

The MCGA card can provide a resolution of 640 x 480 but still provides only white on black.

Obtaining the Windows Driver Library (WDL)

For a complete listing of the WDLs contents and instructions for obtaining the WDL, query on "Q82006" (without the quotation marks) in the Microsoft Knowledge Base.

The original Logitech Windows 3.1 (OEM version) box states that CGA is a supported video mode. This is incorrect. Logitech is changing the wording on the box to state more accurately the limited support for CGA.