Difference between revisions of "MicroVAX 3100 series"

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[[Image:MicroVAX 3100-80.jpg|150px|thumb|right|A MicroVAX 3100-80]]
 
[[Image:MicroVAX 3100-80.jpg|150px|thumb|right|A MicroVAX 3100-80]]
  
The '''MicroVAX 3100 series''' was a line of entry-level desktop [[VAX]] systems, all using a [[microprocessor]] VAX on a [[motherboard]]. (Several different VAX microprocessor implementations were used, over the life of the series.) Although they all had some [[input/output|I/O]] [[peripheral]] upgrades available, the list is limited; the 3100 was not built around a standard [[bus]]. Although technically available for interactive [[time-sharing]] usage (as a [[minicomputer]]), the standard inclusion of a [[display]], [[keyboard]] and [[mouse]] on them indicates that they were primarily geared toward use as a [[personal computer]] (in the generic sense).
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The '''MicroVAX 3100 series''' was a line of entry-level desktop [[VAX]] [[minicomputer]] systems, all using a [[microprocessor]] VAX on a [[motherboard]]. (Several different VAX microprocessor implementations were used, over the life of the series.) Although they all had some [[input/output|I/O]] [[peripheral]] upgrades available, the list is limited; the 3100 was not built around a standard [[bus]].
  
 
The [[CPU]] used was the [[KA41 CPU]], [[KA45 CPU]], [[KA47 CPU]], [[KA50 CPU]], [[KA51 CPU]], [[KA55 CPU]], [[KA56 CPU]] or [[KA59 CPU]], depending on the model. Additional [[main memory]] was carried on [[daughter-board]]s in initial models; later [[Single Inline Memory Module|SIMMs]] were used.  
 
The [[CPU]] used was the [[KA41 CPU]], [[KA45 CPU]], [[KA47 CPU]], [[KA50 CPU]], [[KA51 CPU]], [[KA55 CPU]], [[KA56 CPU]] or [[KA59 CPU]], depending on the model. Additional [[main memory]] was carried on [[daughter-board]]s in initial models; later [[Single Inline Memory Module|SIMMs]] were used.  
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All models of the series supported [[Small Computer System Interface|SCSI]] for [[mass storage]], as well as [[Ethernet]] and several [[asynchronous serial line]]s. Additional [[main memory]], asynchronous serial lines, and [[synchronous serial line]]s, were available as options.
 
All models of the series supported [[Small Computer System Interface|SCSI]] for [[mass storage]], as well as [[Ethernet]] and several [[asynchronous serial line]]s. Additional [[main memory]], asynchronous serial lines, and [[synchronous serial line]]s, were available as options.
  
A desktop [[mounting box]] was used across the 3100 line. All could run either [[VMS]] or [[ULTRIX-32]].
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A desktop [[mounting box]] was used across most of the 3100 line; the Models 88 and 98 used mini-tower packaging. All models could run either [[VMS]] or [[ULTRIX-32]].
  
 
The models in the series were:
 
The models in the series were:
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* [http://www.bitsavers.org/pdf/dec/vax/3100/ VAX 3100] - documentation at [[Bitsavers]]
 
* [http://www.bitsavers.org/pdf/dec/vax/3100/ VAX 3100] - documentation at [[Bitsavers]]
** [http://www.bitsavers.org/pdf/dec/vax/3100/EK-A0371-OM-002_MicroVAX_3100_and_VAXserver_3100_Owners_Manual_Aug89.pdf MicroVAX 3100 and VAXserver 3100 Owner's Manual] (EK-A0371-OM-002) - covers Models 10 and 20 <!-- https://bukosek.si/hardware/collection/dec-microvax3100/microvax3100-owners-manual.pdf ->
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** [http://www.bitsavers.org/pdf/dec/vax/3100/EK-A0371-OM-002_MicroVAX_3100_and_VAXserver_3100_Owners_Manual_Aug89.pdf MicroVAX 3100 and VAXserver 3100 Owner's Manual] (EK-A0371-OM-002) - covers Models 10 and 20 <!-- https://bukosek.si/hardware/collection/dec-microvax3100/microvax3100-owners-manual.pdf -->
 
* [https://www.vaxhaven.com/EK- EK-] - contains a considerable number of rare (online) 3100 manuals
 
* [https://www.vaxhaven.com/EK- EK-] - contains a considerable number of rare (online) 3100 manuals
 
** [https://www.vaxhaven.com/images/4/49/EK-M3100-SM.B01.pdf MicroVAX 3100 Model 85, 90, 95, 96 KA50/51/55/56 CPU System Maintenance] (EK-M3100-SM.B01) - has a system block diagram on pg. 18 of the PDF (technical documentation on the 3100's is ''very'' scarce)
 
** [https://www.vaxhaven.com/images/4/49/EK-M3100-SM.B01.pdf MicroVAX 3100 Model 85, 90, 95, 96 KA50/51/55/56 CPU System Maintenance] (EK-M3100-SM.B01) - has a system block diagram on pg. 18 of the PDF (technical documentation on the 3100's is ''very'' scarce)
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[[Category: VAX Families]]
 
[[Category: VAX Families]]
[[Category: DEC VAX systems]]
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[[Category: VAX Personal Systems]]
[[Category: Personal VAX Systems]]
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[[Category: VAX Minicomputers]]
 
[[Category: MicroVAX 3100 Systems]]
 
[[Category: MicroVAX 3100 Systems]]

Latest revision as of 15:57, 31 May 2024

A MicroVAX 3100-80

The MicroVAX 3100 series was a line of entry-level desktop VAX minicomputer systems, all using a microprocessor VAX on a motherboard. (Several different VAX microprocessor implementations were used, over the life of the series.) Although they all had some I/O peripheral upgrades available, the list is limited; the 3100 was not built around a standard bus.

The CPU used was the KA41 CPU, KA45 CPU, KA47 CPU, KA50 CPU, KA51 CPU, KA55 CPU, KA56 CPU or KA59 CPU, depending on the model. Additional main memory was carried on daughter-boards in initial models; later SIMMs were used.

All models of the series supported SCSI for mass storage, as well as Ethernet and several asynchronous serial lines. Additional main memory, asynchronous serial lines, and synchronous serial lines, were available as options.

A desktop mounting box was used across most of the 3100 line; the Models 88 and 98 used mini-tower packaging. All models could run either VMS or ULTRIX-32.

The models in the series were:

The Model 10 and Model 20 were very similar; the latter had a slightly larger mounting box.

The 3100's shared their motherboard and mounting box with the VAXserver 3100 series and VAXstation 3100 series.

Further reading

External links