An HDMI graphics card for vintage ISA bus PCs #VintageComputing #MSDOS
HDMI is a relatively modern video connector we take for granted on modern PCs and monitors. Now vintage PCs can join in the fun too with a native connection to modern HDMI monitors without any additional adapter with this new graphics card design by Yeo Kheng Meng.
2 years ago, I learned of an open-source project called Graphics Gremlin (GG) by Eric Schlaepfer who runs the website Tubetime.us. It is an 8-bit ISA graphics card that supports display standards like Color Graphics Adapter (CGA) and Monochrome Display Adapter (MDA). CGA and MDA are display standards used by older IBM(-compatible) PCs in the 1980s.
I decided to modify the GG design so it can connect natively to an external HDMI monitor and service the internal Composite-based CRT at the same time.
Unfortunately Yeo Kheng Meng doesn’t intend to sell assembled versions or kits. The entire design and code is open source so all are free to fabricate it themselves via the files on GitHub.
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