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===ROMs and Programmable Logic Devices===
===ROMs and Programmable Logic Devices===
There are three 27256 ROMs on the 571 Main Board:
There are three 27256 ROMs on the 571 Main Board:
* U502 V1.1 160-6993-01 ("ASSEMBLY" software for the 8048)
* U502 V1.1 160-6993-01 (software for the 8048)
* U503 V1.6 160-6992-06 ("BASIC" software for the 8048)
* U503 V1.6 160-6992-06 (software for the 8048)
* U607 V1.1 160-6991-01 (software for the NS405)
* U607 V1.1 160-6991-01 (software for the NS405)
ROM image files for all three ROMs can be found on the [[ROM images]] page.
ROM image files for all three ROMs can be found on the [[ROM images]] page.

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