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  1. M

    ATTO SiliconExpress II - Clone a Fast/Narrow SCSI2 Card?

    You get the exact same benefit by replacing Fast SCSI with Wide SCSI. That said, the 53C94 (8 bit SCSI-1) was used in early NeXTs, and the 53CF94 (8 bit SCSI-2) brought fast SCSI with the exact same driver as the IC auto-negotiates capabilities with the drives transparent to the driver. Other...
  2. M

    ATTO SiliconExpress II - Clone a Fast/Narrow SCSI2 Card?

    1. NuBus and PDS devices need quite different driver structures. I designed a horrible, slow RAM card for the NeXT Cube for which the NuBus itself was the bottleneck. The NuBus structure is a fun exercise in waste by segmenting resources with a veneer of civility hiding layers of needless...
  3. M

    30Video: New video board for SE/30 / IIsi / more?

    I strongly approve of this project, but then I was the one who inspired it. :D I'm amazed at how far this has come, and that @zigzagjoe was able to tackle the driver side of the equation as well as the hardware side.
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