Extended UNIBUS memories: Difference between revisions
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'''[[Extended UNIBUS]] memory''' [[main memory]] cards were available from [[Digital Equipment Corporation|DEC]] and from a number of outside vendors. | '''[[Extended UNIBUS]] memory''' [[main memory]] cards were available from [[Digital Equipment Corporation|DEC]] and from a number of outside vendors. | ||
All DEC EUB memory used [[Dynamic RAM|DRAM]]s, and used [[Error-correcting code|ECC]] to automagically correct single-[[bit]] errors, and (at a slight penalty in [[access time|response time]] when an error occurs) detect double-bit errors. | All DEC EUB memory used [[Dynamic RAM|DRAM]]s, and some used [[Error-correcting code|ECC]] to automagically correct single-[[bit]] errors, and (at a slight penalty in [[access time|response time]] when an error occurs) detect double-bit errors. | ||
==DEC== | ==DEC== | ||
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* [[MS11-M MOS memory]] - MS11-MA, -MB models (128, 256 Kbytes) | * [[MS11-M MOS memory]] - MS11-MA, -MB models (128, 256 Kbytes) | ||
* [[MS11-P MOS memory]] - (1 Mbytes) | * [[MS11-P MOS memory]] - (1 Mbytes) | ||
==See also== | |||
* [[UNIBUS memories]] | |||
[[Category: DEC Memories]] | [[Category: DEC Memories]] | ||
Revision as of 15:16, 23 October 2020
Extended UNIBUS memory main memory cards were available from DEC and from a number of outside vendors.
All DEC EUB memory used DRAMs, and some used ECC to automagically correct single-bit errors, and (at a slight penalty in response time when an error occurs) detect double-bit errors.
DEC
- MS11-L MOS memory - primarily UNIBUS, but had an EUB mode
- MS11-M MOS memory - MS11-MA, -MB models (128, 256 Kbytes)
- MS11-P MOS memory - (1 Mbytes)
