Difference between revisions of "QBUS ROMs"
From Computer History Wiki
m (+cat) |
(Add some more) |
||
| Line 1: | Line 1: | ||
| − | [[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 18:05, 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:
