Talk:VAX 8000

Model categorization
I would suggest something like the following taxonomy (in rough chronological order):


 * 8600 (Venus)
 * 8650 (Morningstar)
 * 8200/8300 (Scorpio, V-11 VLSI CPU)
 * 8250/8350
 * 8700/8800 (Nautilus)
 * 88x0 (Polarstar)
 * 8974/8978
 * 8500/8530/8550 (Flounder/Skipjack)

Should probably also cross-reference to VAXstation 8000. Letdorf (talk) 13:02, 27 October 2008 (UTC).


 * That's probably a better idea. Does the chronological order account for architectural similarity? Or is it less important than chronological ordering?
 * How similar is the VAXstation 8000 to the VAX 8000? The Computer Business Review (links at the VAXstation 8000 section in the VAXstation article) claims that it had MicroVAXen serving as I/O controllers. I don't think the VAX 8000 it was based on had those. Rilak (talk) 05:46, 28 October 2008 (UTC)


 * The VS8000's CPU was defintely the same KA825 as in the VAX 8250. However, there was also something called a KA800 Real Time Accelerator in the VS8000, which was a MicroVAX II running VAXELN . There's some DEC documentation on the VS8000 here.


 * I think the main architectural division was between the 8200/8300 (VLSI V-11 CPU) and the rest (ECL array CPUs). I guess there's also a significant difference between the 86x0 series and the VAXBI-based 85x0/8700/88x0/897x models. Letdorf (talk) 13:03, 28 October 2008 (UTC).


 * I have tweaked the categorization a bit. I am currently going through the February 1987 issue of the Digital Technical Journal, which is about the VAX 8800 family, including the VAX 8700, VAX 8550 and VAX 8500. The older issues can be found here, in case you did not know. Rilak (talk) 07:23, 29 October 2008 (UTC)

Blacklisted Links Found on the Main Page
Cyberbot II has detected that page contains external links that have either been globally or locally blacklisted. Links tend to be blacklisted because they have a history of being spammed, or are highly innappropriate for Wikipedia. This, however, doesn't necessarily mean it's spam, or not a good link. If the link is a good link, you may wish to request whitelisting by going to the request page for whitelisting. If you feel the link being caught by the blacklist is a false positive, or no longer needed on the blacklist, you may request the regex be removed or altered at the blacklist request page. If the link is blacklisted globally and you feel the above applies you may request to whitelist it using the before mentioned request page, or request it's removal, or alteration, at the request page on meta. When requesting whitelisting, be sure to supply the link to be whitelisted and wrap the link in nowiki tags. The whitelisting process can take its time so once a request has been filled out, you may set the invisible parameter on the tag to true. Please be aware that the bot will replace removed tags, and will remove misplaced tags regularly.

Below is a list of links that were found on the main page:


 * http://www.cbronline.com/news/top_end_dec_vax_8974_8978_are_stop_gaps_to_true_mp_vms
 * Triggered by  on the local blacklist

If you would like me to provide more information on the talk page, contact User:Cyberpower678 and ask him to program me with more info.

From your friendly hard working bot.— cyberbot II NotifyOnline 19:36, 8 December 2013 (UTC)

✅ This issue has been resolved, and I have therefore removed the tag, if not already done. No further action is necessary.— cyberbot II NotifyOnline 00:28, 4 March 2014 (UTC)

Macropipelining
I wish someone who knows more about this stuff than I do would write about the unusual architecture of the VAX 8800,, and Doug Clark's unusual management style during its development ... the story deserves to be better known. Jar354 (talk) 17:19, 21 March 2015 (UTC)

Polarstar - 8840 question
I remember there was a decision not to market the 8840 because it offered no more processing power than the 8830. One of the busses could be saturated by 3 processors and so there was no reason to pay for a forth processor. I did some benchmarking on an 8840 at spitbrook road so I know they existed but I don't think they sold any. 149.32.192.35 (talk) 16:40, 1 November 2022 (UTC)