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WD/900 component side. Note the memory expansion that was performed by piggybacking DRAMs and a few extra TTL parts. The 1791
Date: 05/16/2004
Views: 284
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WD/900 circuit side
Date: 05/16/2004
Views: 304
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WD/900 circuit side, closeup of floppy controller daughtercard. The DM1883B DMA controller is hidden from view by the daughterc
Date: 05/16/2004
Views: 267
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WD/900 component side, lower right corner, showing WD/9000 Microengine chipset.
Date: 05/16/2004
Views: 241
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WD/900 component side, upper right corner, showing floppy disk controller
Date: 05/16/2004
Views: 241
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WD/900 component side, upper middle section, showing parallel port and floppy connector.
Date: 05/16/2004
Views: 248
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WD/900 component side, lower middle section
Date: 05/16/2004
Views: 265
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WD/900 component side, lower left corner, showing the DRAM array. This particular WD/900 has extra memory hacked on by piggybac
Date: 05/16/2004
Views: 266
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WD/900 component side, upper left corner, showing the serial ports.
Date: 05/16/2004
Views: 227
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