The Macintosh Two-Page Monochrome Video Card is a 12″ NuBus card originally designed to work with the Macintosh Two-Page Monochrome Display. It was introduced at the same time as the Mac IIcx. It is compatible with 680×0- and PowerPC-based Macs running up to Mac OS 7.6.1. It may be compatible with higher versions of the Mac OS, but we have not been able to test this.
The Mac Two-Page Monochrome Video Card provides no acceleration. It supports up to 4-bit grayscale with a RAM upgrade at 1152 x 870 resolution on the Apple Two-Page Monochrome Display. Without the upgrade, it supports only 1- and 2-bit video.
- There are two variants of this card. The earlier version has a 13w3 connector instead of the “normal” Mac DB-15 that is present on the later version (the photo above shows the Revision B card).
- Requires eight 120ns DIP chips of the same variety as those for the Mac II Video Card for the RAM upgrade. Without the upgrade, the card only supports up to 2-bit grayscale on either monitor.
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