Re: PDF PDF Which is right and which is ... Was Re: PDP-11/24 CPU later version
well I save the tiff because that's what archivists do generally I end up using the jpeg to make picture from. or post to net! In a message dated 2/19/2017 4:25:48 P.M. US Mountain Standard Time, t...@telegraphics.com.au writes: On 2017-02-19 3:50 PM, couryho...@aol.com wrote: > When we scan stuff at SMECC > it is saved in the following 3 formats for each item scanned. > > PDF with ocr background > TIFF > JPEG > and ifcontaining a lot of text a TXT file as well. > > Kind of a shotgun approach... but should stand test of time? Only if you're publishing it somewhere and many people are mirroring it. --Toby > > Ed# _www.smecc.org_ (http://www.smecc.org) > > > > In a message dated 2/19/2017 1:44:52 P.M. US Mountain Standard Time, > j...@mercury.lcs.mit.edu writes: > >> From: Toby Thain > >> Often the source material is a multipage TIFF from the scanner or other >> processing step. > > Multiple single-page TIFFs, in my case. > >> So relevant tools are things like tiff2pdf (tiffutils) > > But also JPEG's, for pages where the B+W scanning I use (with fax > compression > to keep the file size down) results in pages that aren't readable - this > happens on faded pages. Does tiff2pdf handle a bunch of single-page > TIFF's, with a JPEG or two throw in? > > Noel > >
Re: PDF PDF Which is right and which is ... Was Re: PDP-11/24 CPU later version
On 2017-02-19 3:44 PM, Noel Chiappa wrote: > From: Toby Thain > Often the source material is a multipage TIFF from the scanner or other > processing step. Multiple single-page TIFFs, in my case. Tiffcp and tiffsplit go between these, so I don't bother making a distinction... I find multipage TIFFs just as useful as PDF (since I don't care about OCR personally). > So relevant tools are things like tiff2pdf (tiffutils) But also JPEG's, for pages where the B+W scanning I use (with fax compression to keep the file size down) results in pages that aren't readable - this happens on faded pages. If the pages are text, you can start with a grey scale scan and use a per page B&W threshold post-scanning, of course. I wouldn't ship grey scale just for some faded text pages. A more common example of needing interspersed formats would be colour covers, or photographs in a mostly-text document. Or some schematics that need a higher resolution than the text (which rarely needs > 400). > Does tiff2pdf handle a bunch of single-page TIFF's, with a JPEG or two throw in? Well, multipage TIFF certainly can (using tiffcp to assemble). I *think* tiff2pdf can transcode mixed documents reasonably to PDF (and maybe tumble can), but better test to be sure. --T Noel
Re: PDF PDF Which is right and which is ... Was Re: PDP-11/24 CPU later version
On 2017-02-19 3:50 PM, couryho...@aol.com wrote: When we scan stuff at SMECC it is saved in the following 3 formats for each item scanned. PDF with ocr background TIFF JPEG and if containing a lot of text a TXT file as well. Kind of a shotgun approach... but should stand test of time? Only if you're publishing it somewhere and many people are mirroring it. --Toby Ed# _www.smecc.org_ (http://www.smecc.org) In a message dated 2/19/2017 1:44:52 P.M. US Mountain Standard Time, j...@mercury.lcs.mit.edu writes: From: Toby Thain Often the source material is a multipage TIFF from the scanner or other processing step. Multiple single-page TIFFs, in my case. So relevant tools are things like tiff2pdf (tiffutils) But also JPEG's, for pages where the B+W scanning I use (with fax compression to keep the file size down) results in pages that aren't readable - this happens on faded pages. Does tiff2pdf handle a bunch of single-page TIFF's, with a JPEG or two throw in? Noel
Re: PDF PDF Which is right and which is ... Was Re: PDP-11/24 CPU later version
When we scan stuff at SMECC it is saved in the following 3 formats for each item scanned. PDF with ocr background TIFF JPEG and if containing a lot of text a TXT file as well. Kind of a shotgun approach... but should stand test of time? Ed# _www.smecc.org_ (http://www.smecc.org) In a message dated 2/19/2017 1:44:52 P.M. US Mountain Standard Time, j...@mercury.lcs.mit.edu writes: > From: Toby Thain > Often the source material is a multipage TIFF from the scanner or other > processing step. Multiple single-page TIFFs, in my case. > So relevant tools are things like tiff2pdf (tiffutils) But also JPEG's, for pages where the B+W scanning I use (with fax compression to keep the file size down) results in pages that aren't readable - this happens on faded pages. Does tiff2pdf handle a bunch of single-page TIFF's, with a JPEG or two throw in? Noel
Re: PDF PDF Which is right and which is ... Was Re: PDP-11/24 CPU later version
> From: Toby Thain > Often the source material is a multipage TIFF from the scanner or other > processing step. Multiple single-page TIFFs, in my case. > So relevant tools are things like tiff2pdf (tiffutils) But also JPEG's, for pages where the B+W scanning I use (with fax compression to keep the file size down) results in pages that aren't readable - this happens on faded pages. Does tiff2pdf handle a bunch of single-page TIFF's, with a JPEG or two throw in? Noel
Re: PDF PDF Which is right and which is ... Was Re: PDP-11/24 CPU later version
In a message dated 2/19/2017 8:06:50 A.M. US Mountain Standard Time, mo...@rodents-montreal.org writes: > - PDF/A is [...] > Those are all good archival properties! However, it's also R/O. Maybe if you stick to Adobe's tools. As demonstrated by this thread, it's entirely possible to modify such files, even if the currently-easy ways to do that involve a trip through a completely different representation. I find it astonishing that anyone would seriously call any documented file format read-only. (If PDF/A isn't documented, then IMO it's not suitable for archival under any circumstances. But this thread makes it sound as though it's documented.) /~\ The ASCII Mouse \ / Ribbon Campaign X Against HTMLmo...@rodents-montreal.org / \ Email! 7D C8 61 52 5D E7 2D 39 4E F1 31 3E E8 B3 27 4B == OK .. (correct me if I am gong in the wrong direction) so the important thing is that there is... - data in a format that is readable by others and a description of formats so if needed a reader can be constructed at a later date if needed. -non-commercial tools to access it or have the ability to modify the data in the future for all of time. -a reader/writer can be redone to work under a new operating system since source code is freely available for it? yea... makes sense... I do know what I do in any given week here is not necessary for the present but for years and sometimes lifetimes far removed from the present moment. #Ed _www.smecc.org_ (http://www.smecc.org)
Re: PDF PDF Which is right and which is ... Was Re: PDP-11/24 CPU later version
On 2017-02-19 4:39 AM, Nico de Jong wrote: The Open Office for Windows package has a "save as ...pdf" function Y'all realise we're dealing with bundles of *scanned images* in the context of this discussion. Often the source material is a multipage TIFF from the scanner or other processing step. So relevant tools are things like tiff2pdf (tiffutils), and tumble as cited on http://bitsavers.trailing-edge.com/ My objection to PDF/A doesn't really stand if there are good open source tools to process it (clearly the Adobe tools don't count). --T /Nico - Original Message - From: Paul Birkel To: 'General Discussion: On-Topic and Off-Topic Posts' Sent: Sunday, February 19, 2017 9:40 AM Subject: RE: PDF PDF Which is right and which is ... Was Re: PDP-11/24 CPU later version -Original Message- From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Chuck Guzis Sent: Saturday, February 18, 2017 4:04 PM To: General Discussion: On-Topic and Off-Topic Posts Subject: Re: PDF PDF Which is right and which is ... Was Re: PDP-11/24 CPU later version -- I am using the free version of SPAMfighter. SPAMfighter has removed 12169 of my spam emails to date. Get the free SPAMfighter here: http://www.spamfighter.com/len Do you have a slow PC? Try a Free scan http://www.spamfighter.com/SLOW-PCfighter?cid=sigen
RE: PDF PDF Which is right and which is ... Was Re: PDP-11/24 CPU later version
-Original Message- From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Mouse Sent: Sunday, February 19, 2017 10:07 AM To: cctalk@classiccmp.org Subject: Re: PDF PDF Which is right and which is ... Was Re: PDP-11/24 CPU later version > - PDF/A is [...] > Those are all good archival properties! However, it's also R/O. Maybe if you stick to Adobe's tools. As demonstrated by this thread, it's entirely possible to modify such files, even if the currently-easy ways to do that involve a trip through a completely different representation. I find it astonishing that anyone would seriously call any documented file format read-only. (If PDF/A isn't documented, then IMO it's not suitable for archival under any circumstances. But this thread makes it sound as though it's documented.) /~\ The ASCII Mouse \ / Ribbon Campaign X Against HTMLmo...@rodents-montreal.org / \ Email! 7D C8 61 52 5D E7 2D 39 4E F1 31 3E E8 B3 27 4B - I wasn't intending to make an existential claim. I was making an observation that, yes, was based on experience with a particular tool. And now I've found how to extend that tool to remove that limitation, thank you Guy :->. PDF/A still has properties that are specific to a community-of-use. Evidently Al thinks those properties are detrimental to the intent of Bitsavers? I wasn't previously aware of that issue; perhaps others here were also unaware? - paul
Re: PDF PDF Which is right and which is ... Was Re: PDP-11/24 CPU later version
> - PDF/A is [...] > Those are all good archival properties! However, it's also R/O. Maybe if you stick to Adobe's tools. As demonstrated by this thread, it's entirely possible to modify such files, even if the currently-easy ways to do that involve a trip through a completely different representation. I find it astonishing that anyone would seriously call any documented file format read-only. (If PDF/A isn't documented, then IMO it's not suitable for archival under any circumstances. But this thread makes it sound as though it's documented.) /~\ The ASCII Mouse \ / Ribbon Campaign X Against HTMLmo...@rodents-montreal.org / \ Email! 7D C8 61 52 5D E7 2D 39 4E F1 31 3E E8 B3 27 4B
RE: PDP-11/24 CPU later version
-Original Message- From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Bob Rosenbloom Sent: Saturday, February 18, 2017 1:37 PM To: General Discussion: On-Topic and Off-Topic Posts Subject: Re: PDP-11/24 CPU later version On 2/18/2017 10:29 AM, Paul Birkel wrote: > -Original Message- > From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Bob > Rosenbloom > Sent: Saturday, February 18, 2017 1:24 PM > To: General Discussion: On-Topic and Off-Topic Posts > Subject: Re: PDP-11/24 CPU later version > > On 2/18/2017 10:04 AM, Paul Birkel wrote: >>> -Original Message- >>> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Al > Kossow >>> Sent: Saturday, February 18, 2017 12:50 PM >>> To: cctalk@classiccmp.org >>> Subject: Re: PDP-11/24 CPU later version >>> >>> PDF-A >>> >>> which is the reason it's not on bitsavers >> Thank you Al. It's not just me then who has heartburn with that format > .. >> > I removed the /A format and put the copy up here: > http://dvq.com/docs/EK-11024-TM-003.pdf > > Bob > > - > > Thanks! What tool did you use to do that? > > paul Adobe Acrobat 9. Its buried down a few menus, and not obvious. Menus: Advanced then Preflight (at the bottom on mine) then PDF/A compliance then Remove PDF/A information Supposedly easier in Acrobat 10. Bob -- "Supposedly" is the operative expression IMO. I have a very old copy of Acrobat X Pro and had to first discover "Remove PDFa Information.sequ" and install that. Now it's: Tools Action Wizard Actions Remove PDFa Information So that is perhaps more obvious, _once_ you discover that the functionality has to be added; it's not a built-in, which was my erroneous expectation. Thanks for the nudge in the right direction! paul -
Re: PDF PDF Which is right and which is ... Was Re: PDP-11/24 CPU later version
The Open Office for Windows package has a "save as ...pdf" function /Nico - Original Message - From: Paul Birkel To: 'General Discussion: On-Topic and Off-Topic Posts' Sent: Sunday, February 19, 2017 9:40 AM Subject: RE: PDF PDF Which is right and which is ... Was Re: PDP-11/24 CPU later version -Original Message- From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Chuck Guzis Sent: Saturday, February 18, 2017 4:04 PM To: General Discussion: On-Topic and Off-Topic Posts Subject: Re: PDF PDF Which is right and which is ... Was Re: PDP-11/24 CPU later version -- I am using the free version of SPAMfighter. SPAMfighter has removed 12169 of my spam emails to date. Get the free SPAMfighter here: http://www.spamfighter.com/len Do you have a slow PC? Try a Free scan http://www.spamfighter.com/SLOW-PCfighter?cid=sigen
RE: PDF PDF Which is right and which is ... Was Re: PDP-11/24 CPU later version
-Original Message- From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Chuck Guzis Sent: Saturday, February 18, 2017 4:04 PM To: General Discussion: On-Topic and Off-Topic Posts Subject: Re: PDF PDF Which is right and which is ... Was Re: PDP-11/24 CPU later version On 02/18/2017 11:24 AM, couryho...@aol.com wrote: > > Adobe claims " PDF/A - the ISO standard for long-term archiving" > > -I am confused about all the versions etc.. > -which are good which are bad? > -are there good programs for opening hesitant to open pdf file? > - what is a goodfreeware PDF generator? / modifier? > - are older versions of the reader better than the newer ones? > -my HP scanner software makes PDF files eiher as graphics or as graphics with OCR > -is my HP scanner making "good" pdf files that can be read into the future? > > Sorry if I seem confused on this... but I am! When scanning documents and converting to PDF, I've found that ghostscript works fine (under Linux). There's also a separate tiff to pdf converter available as a package. Some people use ImageMagick There are also a number of free online conversion websites; I've used a couple and they seem to be pretty decent. --Chuck - http://www.differencebetween.net/technology/software-technology/difference-b etween-pdf-and-pdf-a/ is a concise description Summary: - PDF/A is a special type of PDF meant for archiving documents - PDF/A does not allow audio, video, and executable content while PDF does - PDF/A requires that graphics and fonts be embedded into the file while PDF does not - PDF/A does not allow external references while PDF does - PDF/A does not allow encryption while PDF does Those are all good archival properties! However, it's also R/O. For my purposes PDF/A is undesirable because I can't: (1) OCR it. (2) Extract pages. (3) Combine sectioned files into a single document. (4) Rotate pages permanently. It's the R/O part that is "mighty unhelpful" since it precludes basic document management. Gotta hope that the archivist made good choices. But the choices of an archivist aren't necessarily those of a user with a day-to-day need to fix stuff :-<. I can see value for a processing stream that uses a PDF/A intermediary to ensure the desirable properties listed above (e.g., font embedding) but then a final save in standard "open" PDF that allow users to accomplish the types of manipulations that I've listed. - paul
Re: PDP-11/24 CPU later version
> From: Al Kossow > PDF-A Sorry, what's the issue with PDF/A? Since it's supposedly the 'archival' version, that's what I asked for; I wanted to maximize the lifetime of these things. What version of PDF should I be asking for? (I'm not doing the PDF'ing. The person who is is using Acrobat.) > which is the reason it's not on bitsavers Are any other of the things I've scanned that aren't up for the same reason? List here (first two sections): http://ana-3.lcs.mit.edu/~jnc/tech/pdp11/PDP-11_Stuff.html Please let me know, and I'll get them re-PDF'd into an acceptable form. Noel
Re: PDF PDF Which is right and which is ... Was Re: PDP-11/24 CPU later version
On 02/18/2017 11:24 AM, couryho...@aol.com wrote: > > Adobe claims " PDF/A – the ISO standard for long-term archiving" > > -I am confused about all the versions etc.. > -which are good which are bad? > -are there good programs for opening hesitant to open pdf file? > - what is a goodfreeware PDF generator? / modifier? > - are older versions of the reader better than the newer ones? > -my HP scanner software makes PDF files eiher as graphics or as graphics > with OCR > -is my HP scanner making "good" pdf files that can be read into the > future? > > Sorry if I seem confused on this... but I am! When scanning documents and converting to PDF, I've found that ghostscript works fine (under Linux). There's also a separate tiff to pdf converter available as a package. Some people use ImageMagick There are also a number of free online conversion websites; I've used a couple and they seem to be pretty decent. --Chuck
PDF PDF Which is right and which is ... Was Re: PDP-11/24 CPU later version
Adobe claims " PDF/A the ISO standard for long-term archiving" -I am confused about all the versions etc.. -which are good which are bad? -are there good programs for opening hesitant to open pdf file? - what is a goodfreeware PDF generator? / modifier? - are older versions of the reader better than the newer ones? -my HP scanner software makes PDF files eiher as graphics or as graphics with OCR -is my HP scanner making "good" pdf files that can be read into the future? Sorry if I seem confused on this... but I am! thanks for any help Ed# _www.smecc.org_ (http://www.smecc.org) In a message dated 2/18/2017 11:24:14 A.M. US Mountain Standard Time, boba...@sbcglobal.net writes: On 2/18/2017 10:04 AM, Paul Birkel wrote: >> -Original Message- >> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Al Kossow >> Sent: Saturday, February 18, 2017 12:50 PM >> To: cctalk@classiccmp.org >> Subject: Re: PDP-11/24 CPU later version >> >> PDF-A >> >> which is the reason it's not on bitsavers > Thank you Al. It's not just me then who has heartburn with that format ... > > > > I removed the /A format and put the copy up here: http://dvq.com/docs/EK-11024-TM-003.pdf Bob -- Vintage computers and electronics www.dvq.com www.tekmuseum.com www.decmuseum.org
Re: PDP-11/24 CPU later version
On 2/18/2017 10:29 AM, Paul Birkel wrote: -Original Message- From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Bob Rosenbloom Sent: Saturday, February 18, 2017 1:24 PM To: General Discussion: On-Topic and Off-Topic Posts Subject: Re: PDP-11/24 CPU later version On 2/18/2017 10:04 AM, Paul Birkel wrote: -Original Message- From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Al Kossow Sent: Saturday, February 18, 2017 12:50 PM To: cctalk@classiccmp.org Subject: Re: PDP-11/24 CPU later version PDF-A which is the reason it's not on bitsavers Thank you Al. It's not just me then who has heartburn with that format .. I removed the /A format and put the copy up here: http://dvq.com/docs/EK-11024-TM-003.pdf Bob - Thanks! What tool did you use to do that? paul Adobe Acrobat 9. Its buried down a few menus, and not obvious. Menus: Advanced then Preflight (at the bottom on mine) then PDF/A compliance then Remove PDF/A information Supposedly easier in Acrobat 10. Bob -- Vintage computers and electronics www.dvq.com www.tekmuseum.com www.decmuseum.org
RE: PDP-11/24 CPU later version
-Original Message- From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Bob Rosenbloom Sent: Saturday, February 18, 2017 1:24 PM To: General Discussion: On-Topic and Off-Topic Posts Subject: Re: PDP-11/24 CPU later version On 2/18/2017 10:04 AM, Paul Birkel wrote: >> -Original Message- >> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Al Kossow >> Sent: Saturday, February 18, 2017 12:50 PM >> To: cctalk@classiccmp.org >> Subject: Re: PDP-11/24 CPU later version >> >> PDF-A >> >> which is the reason it's not on bitsavers > Thank you Al. It's not just me then who has heartburn with that format ... > > I removed the /A format and put the copy up here: http://dvq.com/docs/EK-11024-TM-003.pdf Bob - Thanks! What tool did you use to do that? paul
Re: PDP-11/24 CPU later version
On 2/18/2017 10:04 AM, Paul Birkel wrote: -Original Message- From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Al Kossow Sent: Saturday, February 18, 2017 12:50 PM To: cctalk@classiccmp.org Subject: Re: PDP-11/24 CPU later version PDF-A which is the reason it's not on bitsavers Thank you Al. It's not just me then who has heartburn with that format ... I removed the /A format and put the copy up here: http://dvq.com/docs/EK-11024-TM-003.pdf Bob -- Vintage computers and electronics www.dvq.com www.tekmuseum.com www.decmuseum.org
RE: PDP-11/24 CPU later version
>-Original Message- >From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Al Kossow >Sent: Saturday, February 18, 2017 12:50 PM >To: cctalk@classiccmp.org >Subject: Re: PDP-11/24 CPU later version > >PDF-A > >which is the reason it's not on bitsavers Thank you Al. It's not just me then who has heartburn with that format ...
Re: PDP-11/24 CPU later version
PDF-A which is the reason it's not on bitsavers On 2/18/17 9:48 AM, Toby Thain wrote: > On 2017-02-18 12:44 PM, Paul Birkel wrote: >> Thanks for scanning this! No sign that Al has done-his-bit :-<. >> In the meantime is it possible to get an unlocked copy that I can OCR so >> that it's searchable? > > Unlocked?!?!?!?! >
Re: PDP-11/24 CPU later version
On 2017-02-18 12:44 PM, Paul Birkel wrote: Thanks for scanning this! No sign that Al has done-his-bit :-<. In the meantime is it possible to get an unlocked copy that I can OCR so that it's searchable? Unlocked?!?!?!?! Sounds like yet another reason to publish multipage TIFF instead of or in addition to PDF. --Toby Should I infer that you purchased that $399 load of DEC modules? I debated, what with the J11 processor, but no FP-coprocessor and no documentation. -Original Message- From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Noel Chiappa Sent: Tuesday, February 07, 2017 5:42 PM To: cctalk@classiccmp.org Cc: j...@mercury.lcs.mit.edu Subject: PDP-11/24 CPU later version So I was recently provided (thanks!) with a copy of the later rev of the PDP-11/24 Tech Manual (EK-11024-TM-003), which I have had scanned for a while now (waiting for a quite period on the list ;-), and is now available for upload here: http://ana-3.lcs.mit.edu/~jnc/tech/pdp11/EK-11024-TM-003.pdf (Bitsavers et al, please pick this up and distribute.) So it has an Appendix D, which described the -YA later rev of the CPU card (in which a bunch of gates were replaced with a couple of custom gate arrays. Does anyone have one of these? I'd love to get a photo of one, if so. Thanks! Noel
RE: PDP-11/24 CPU later version
Thanks for scanning this! No sign that Al has done-his-bit :-<. In the meantime is it possible to get an unlocked copy that I can OCR so that it's searchable? Should I infer that you purchased that $399 load of DEC modules? I debated, what with the J11 processor, but no FP-coprocessor and no documentation. -Original Message- From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Noel Chiappa Sent: Tuesday, February 07, 2017 5:42 PM To: cctalk@classiccmp.org Cc: j...@mercury.lcs.mit.edu Subject: PDP-11/24 CPU later version So I was recently provided (thanks!) with a copy of the later rev of the PDP-11/24 Tech Manual (EK-11024-TM-003), which I have had scanned for a while now (waiting for a quite period on the list ;-), and is now available for upload here: http://ana-3.lcs.mit.edu/~jnc/tech/pdp11/EK-11024-TM-003.pdf (Bitsavers et al, please pick this up and distribute.) So it has an Appendix D, which described the -YA later rev of the CPU card (in which a bunch of gates were replaced with a couple of custom gate arrays. Does anyone have one of these? I'd love to get a photo of one, if so. Thanks! Noel
Re: PDP-11/24 CPU later version
The M7133 is etch D or earlier. The M7133-YA is rev E or later. I'll put it on my look for list. On Tue, Feb 7, 2017 at 4:41 PM, Noel Chiappa wrote: > So I was recently provided (thanks!) with a copy of the later rev of the > PDP-11/24 Tech Manual (EK-11024-TM-003), which I have had scanned for a > while > now (waiting for a quite period on the list ;-), and is now available for > upload here: > > http://ana-3.lcs.mit.edu/~jnc/tech/pdp11/EK-11024-TM-003.pdf > > (Bitsavers et al, please pick this up and distribute.) > > So it has an Appendix D, which described the -YA later rev of the CPU card > (in which a bunch of gates were replaced with a couple of custom gate > arrays. > Does anyone have one of these? I'd love to get a photo of one, if so. > > Thanks! > > Noel >
PDP-11/24 CPU later version
So I was recently provided (thanks!) with a copy of the later rev of the PDP-11/24 Tech Manual (EK-11024-TM-003), which I have had scanned for a while now (waiting for a quite period on the list ;-), and is now available for upload here: http://ana-3.lcs.mit.edu/~jnc/tech/pdp11/EK-11024-TM-003.pdf (Bitsavers et al, please pick this up and distribute.) So it has an Appendix D, which described the -YA later rev of the CPU card (in which a bunch of gates were replaced with a couple of custom gate arrays. Does anyone have one of these? I'd love to get a photo of one, if so. Thanks! Noel