Dual Display Graphics Adapter (250-3045)   Features     Faxback Doc. # 2081

The Dual Display Graphics Adapter (DDGA) is a multi-application video display
adapter that combines on a single card the text, graphics, and color
capabilities of the IBM Monochrome Adapter, IBM Color/Graphics Adapter, the
Plantronics ColorPlus Adapter, and the Hercules Monochrome Graphics Adapter.
In emulation mode, the DDGA also runs color software on a monochrome monitor.

IBM-compatible:
   Monochrome Text and Hercules-compatible Monochrome
   
Graphics:
   The DDGA displays all high-resolution monochrome IBM character set.

Video Controller: 
   6845 CRT Controller Chip

Color/Graphics Emulation:
   The DDGA displays color text and graphics as 16 distinct shades of gray 
   on a monochrome monitor without any special driver software.

Color/Graphics:
   The DDGA supports all standard IBM-compatible color/graphics software.

Plantronics-Compatible Color/Graphics:
   The DDGA supports all Plantronics-compatible software, displaying either 
   16 colors at 320 x 200 resolution or 4 colors at 640 x 200 resolution.

16-Color High Resolution:
   The DDGA can display 16 colors at 640 x 200 resolution.

132 Columns:
   The DDGA can display text in 132 columns on either color or monochrome 
   monitors.

An additional DDGA feature includes the ability to convert a color signal into
16 shades for composite monochrome monitors such as the Tandy VM-2 or VM-4.

The DDGA is designed for use with the VM-2, VM-3, VM-4, CM-2, CM-4, and CM-10
Tandy monitors, a color television set with a monitor input (such as 16-232,
or any other TV connected with a modulator (such as 15-1273).