|Processor||uPD8039LC||uPD7811G||uPD7811G||uPD7811G||uPD7811||uPD78310||uPD78310||?
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|BIOS ROM||4Kbytes <br>(4K EPROM, 8DE-1)||16Kbytes <br>(16K EPROM, the ROM in the uPD7811 is disabled)||20Kbytes <br>(4K in uPD7811, plus 16K in EPROM)||28Kbytes <br>(4K in uPD7811 plus 8K+16K EPROMs; or 4K in uPD7811 plus 32K EPROM with unused 8K; or 32K EPROM with unused 4K and ROM-less uPD7810)||27256 32kbyte EPROM||64Kbyte+512Kbyte EPROMs||3x ROM chips||?
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|Buffer RAM||2K||?||2K ([[DMP2000 Buffer Upgrade Kit|upgradeable to 8K]])||8K||8K (see leaflet)||8K (see leaflet) plus 8K (char RAM?)||8K (see leaflet)<br>total 4x8K (service manal)||?