Category Archives: Graphics

Broken Spigot

While searching for an unrelated piece of hardware, I came across an old video capture board. Alarm bells started going off when I heard something rattling in the anti-static wrap. Sure enough, one of the large capacitors fell off… because … Continue reading

Posted in Graphics, PC hardware, PC history | 3 Comments

sips To the Rescue

A few days ago I scanned a document and unwisely used MS Paint on Windows 7 to touch up a small selection of the scanned pages. Once the dozen or so files were re-touched, I combined them into a PDF … Continue reading

Posted in Graphics, OS X | Leave a comment

A Tale of Two Displays

By sheer coincidence, two new computers arrived in my family at almost the same time, and they couldn’t be more different. At first sight, the most striking difference is the quality of their displays, and it says a lot about … Continue reading

Posted in Apple, Graphics, PC hardware | 10 Comments

NT Video Miniport for VirtualBox, With Source Code

Upon reader request, the OS/2 Museum is publishing the source code to the NT video miniport driver for VirtualBox. To recap, this is a NT video miniport which allows 32-bit NT versions to use high-resolution graphics modes in a VirtualBox VM. The … Continue reading

Posted in Graphics, NT, Source code, VirtualBox | 17 Comments

S3 Fraternal Twins

Sometimes identifying old hardware is a bit tricky. Consider these two graphics cards: The PCB is the same, the BIOS chips look the same, the DAC is slightly different but an 80 MHz part in both cases, memory is the … Continue reading

Posted in Graphics, PC hardware, S3 | Leave a comment

The ISA OSC Mystery

About twenty years ago I ended up with a spare ISA graphics card from an upgraded computer. It was a SVGA card based on the Cirrus Logic CL-GD5422 chip, equipped with 1 MB video memory. This was a very cheap … Continue reading

Posted in Cirrus Logic, Graphics, PC hardware | 14 Comments

Early PCI Board

Since some of this blog’s readers are very good at recognizing obscure hardware, I thought I’d post photos of one more somewhat exotic graphics card: This board was one of the early PCI graphics adapters. It’s old enough that it … Continue reading

Posted in Graphics, PC hardware | 27 Comments

Two More TIGAs

Since some readers appear to enjoy identifying prehistoric graphics cards, I thought I’d post photos of two more TIGA boards from my junk pile. I know what these are, but do you? One of them ought to be fairly easy … Continue reading

Posted in Graphics, PC hardware | 13 Comments

Another Vermont Microsystems Board

My junk pile turned out to contain another board by Vermont Microsystems, Inc. (VMI), probably no less exotic than the mystery board. This one is a Microchannel board built around an Intel 82786. An in this case, VMI was kind … Continue reading

Posted in Graphics, PC hardware | 19 Comments

Have You Seen These Cards?

While cataloging my junk pile, I came across two graphics cards that I could not identify. Both are high-end ISA graphics accelerators from the early 1990s and both utilize Texas Instruments GPUs (long before the term “GPU” was first used, … Continue reading

Posted in Graphics, PC hardware | 38 Comments