test-drb February 2016

test-drb@ccmp.vtda.org

203 participants
239 discussions

PDP-11/20 vd one that just says pdp 11 what are the date differences?? OEM?

by COURYHOUSE＠aol.com

Then there is this information..... PDP-11/15 (http://gunkies.org/wiki/PDP-11/15#column-one) (http://gunkies.org/wiki/PDP-11/15#searchInput) This is the OEM version of the _PDP-11/20_ (http://gunkies.org/wiki/PDP-11/20) .

10 years

PDP-11/20 vd one that just says pdp 11 what are the date differences?? OEM?

by COURYHOUSE＠aol.com

In a message dated 2/22/2016 11:50:15 A.M. US Mountain Standard Time, cisin at xenosoft.com writes: On Mon, 22 Feb 2016, Paul Birkel wrote: > I wonder how long it took them to "figure it out"? I seems that the > family-plan dates to April 1969. When everybody realized and accepted that there would be more than one sub-model, and decided that it might be handy to be able to tell them apart. There may have been some holdouts in some departments, such as silk-screening the panels. By analogy, the phrase "single density" didn't originally exist. After "DOUBLE-density" was developed, THEN "single density" needed a name. Although just sticking with "FM" and "MFM" would have been a lot better! (Although I guess that it was inevitable that marketing would invent "HD", instead of "double data transfer rate MFM".) There were even a few companies that freely intermingled HEADS V density! Intertec/Superbrain decided to call their 5.25" 40 track DSDD, "QUAD density", because it was twice the capacity of the 40 track SSDD! Then, when they added an 80 track DSDD, they caalled that "SUPER density", abbreviated "SD"! So, if you encounter an alien disk labelled "SD", it might be 720K/800K, not 100K. Similarly, if you were to search ancient archives, the phrase "World War TWO" was first used BEFORE there was any mention of "World War ONE". It wan't until a second happened, or was expected, before anybody had any reason to declare the "Great war"/"World War" to be "nuber ONE". So, the use of any sort of "first" name doesn't occur until "second" is expected. Or WW1 was also referred to as the "war to end all wars" some good name sequence comparisons here Ed#

10 years

PDP-11/20 vd one that just says pdp 11 what are the date differences?? OEM?

by COURYHOUSE＠aol.com

PDP-11/20 vd one that just says pdp 11 what are the date differences?? OEM? was one version for customer and one for OEM? THANKS IN ADVANCE Ed#

10 years

PDP-11/20 vd one that just says pdp 11 what are the date differences?? OEM?

by COURYHOUSE＠aol.com

In a message dated 2/22/2016 6:33:13 A.M. US Mountain Standard Time, billdegnan at gmail.com writes: > > > > The PDP-11/10 was the second processor made in the _PDP-11_ > (http://gunkies.org/wiki/PDP-11) series. > The PDP-11/05 CPU was identical to the PDP-11/10 (KA11-B). The only > difference between the PDP-11/05 and the PDP-11/10 was that the PDP-11/05 > was > made for OEM, while the PDP-11/10 was for end-users. > sort of like the 8 m and 8 f were same but one oem one end user > Ed# at _www.smecc.org_ (http://www.smecc.org) > > > > The second 11/10 obviously. Not the 1st. The first 11/10 was a KA11 I hope I am making my point - I am suggesting that everyone stop quoting and repeating the DEC wiki's on the web. They all need to be updated to reflect this subtle difference. -- @ BillDeg: Web: vintagecomputer.net Twitter: @billdeg <https://twitter.com/billdeg> Youtube: @billdeg <https://www.youtube.com/user/billdeg> Unauthorized Bio <http://www.vintagecomputer.net/readme.cfm> Bill.... read carefully - - I was talking about the second one that paired with the 11/05 and using it as a comparison in nomenclature like they did with the pdp-8 m or f to show you could have same things but different name depending if for customer or oem. or that is what I was trying to do anyway. ---Ed# _www.smecc.org_ (http://www.smecc.org)

10 years

Looking for a small fast VAX development machine

by seefriek＠gmail.com

From: "Maciej W. Rozycki" <macro at linux-mips.org> > I've only ever heard of and saw a single kind of monochrome graphics > hardware for x86 PCs and that was the Hercules Graphics Card (HGC) and its > clones, and these were already gone by early to mid 1990s. The Wyse 700 and Bell Tech Blit were both ISA bus mono video cards. There were others (maybe Radius...Metheus as well?). P.S. - Sorry if I included the whole digest in my previous reply. Long day. KJ

10 years

PDP-11/20 vd one that just says pdp 11 what are the date differences?? OEM?

by jnc＠mercury.lcs.mit.edu

> From: Bill Degnan > I hope I am making my point - I am suggesting that everyone stop > quoting and repeating the DEC wiki's on the web. They all need to be > updated to reflect this subtle difference. The thing is that there never was a physical PDP-11/10 of the first type, it was just marketing plans; whereas there were/are still many physical -11/10's of the second type. Yes, detailed histories might (and many do) indicate that the name "PDP-11/10" was originally allocated to what later became the 11/15, but to the extent that one allocates the name "-11/10" to anything, it should, by virtue of the point above, be to the KD11-B machine. Noel

10 years

Minix 3 vs portability - was Re: Looking for a small fast VAX development machine

by seefriek＠gmail.com

On 2016-02-22 11:58 AM, Mouse wrote: > Unix was done on the PDP-11 (something else > before that, I think, but I forget what, and I think it was with the > move to the -11 that it became portable enough to be ported instead of > rewritten). PDP-7, though it was more of a "reimplementation" than a port. The PDP-11 code became (by v6 or so) portable enough that it was subsequently made to run on the (sorta IBM 360-ish) Interdata 7/32 & 8/32, as well as VM/370, in the late 70s. KJ

10 years

HYPERchannel users?

by auringer＠tds.net

Hi All, Does anyone still play around with HYPERchannel equipment? I have a MultiBus I to HYPERchannel adapter that could use a new home. It is in a Network Systems Corporation box with cables and manual. The model is PIx50. It is in Madison WI (53714). For more information about HYPERchannel: https://en.wikipedia.org/wiki/HYPERchannel https://en.wikipedia.org/wiki/Network_Systems_Corporation -Jon

10 years

PDP-11/20 vd one that just says pdp 11 what are the date differences?? OEM?

by COURYHOUSE＠aol.com

In a message dated 2/22/2016 5:21:06 A.M. US Mountain Standard Time, pontus at Update.UU.SE writes: On Mon, Feb 22, 2016 at 07:16:24AM -0500, william degnan wrote: > > Here is the doc in question. Note is says 11/10 and 11/20 > > http://vintagecomputer.net/digital/PDP11-20/PDP11_Price-List_19691215.pdf Hmm, notice that it says "Turnkey Console" which I believe means it lacks the lights and switches console? /P yes...... there therye was another pdp 11/10 that was a versioon of the 11/05 so in reality there were 2 differt 11/10's one that was a deballed 20 and one that was a 05 variant... as explainedd The PDP-11/10 was the second processor made in the _PDP-11_ (http://gunkies.org/wiki/PDP-11) series. The PDP-11/05 CPU was identical to the PDP-11/10 (KA11-B). The only difference between the PDP-11/05 and the PDP-11/10 was that the PDP-11/05 was made for OEM, while the PDP-11/10 was for end-users. sort of like the 8 m and 8 f were same but one oem one end user Ed# at _www.smecc.org_ (http://www.smecc.org)

10 years

PCS Cadmus/QU68000 systems

by ramdyne＠gmx.net

Hi, Is anyone interested in PCS Cadmus/QU68000 systems? We at Hack42 have no idea what to do with them. We need to downsize and these take up a significant amount of our space. See http://dev.ramdyne.nl/IMG_2750.JPG for photograph of the stack. If you know other people who are interested in beasts like these, please pass this information on. -- Andreas

10 years

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test-drb February 2016