QBUS ROMs: Difference between revisions
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[[Digital Equipment Corporation|DEC]] produced several generations of '''[[QBUS]] [[Read-only memory|ROM]] boot''' cards; | [[Digital Equipment Corporation|DEC]] produced several generations of '''[[QBUS]] [[Read-only memory|ROM]] boot''' cards. Early ones also included QBUS [[terminator]]s; some of the later were multi-function cards, and included other functionality. | ||
<!-- * The | * The first was the [[REV11 DMA Refresh/Bootstrap/Terminator]] [[DEC card form factor|dual]] card. <!-- ; it contains 128 words, using 2 [[PROM]] chips. --> | ||
* The second was the [[BDV11 Bus Terminator/ROM]], a [[DEC card form factor|quad]] card. | |||
* [[MRV11-C Read-Only Memory Module]] | |||
* [[MRV11-D Universal Programmable Read-Only Memory]] | |||
* | Multi-function cards which included ROMs included: | ||
* [[MXV11-A Multifunction Option Module]] | |||
* [[MXV11-B Multifunction Option Module]] | |||
<!-- In all of the cards, the entire ROM contents were not directly visible on the QBUS, but through a window, unlike later, larger [[QBUS]] ROM cards. --> | <!-- In all of the cards, the entire ROM contents were not directly visible on the QBUS, but through a window, unlike later, larger [[QBUS]] ROM cards. --> | ||
{{stub | {{semi-stub}} | ||
[[Category: QBUS ROMs]] | [[Category: QBUS ROMs]] | ||
Revision as of 16:05, 2 July 2023
DEC produced several generations of QBUS ROM boot cards. Early ones also included QBUS terminators; some of the later were multi-function cards, and included other functionality.
- The first was the REV11 DMA Refresh/Bootstrap/Terminator dual card.
- The second was the BDV11 Bus Terminator/ROM, a quad card.
- MRV11-C Read-Only Memory Module
- MRV11-D Universal Programmable Read-Only Memory
Multi-function cards which included ROMs included:
