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Wolfgang Stiefmaier pdp-8/ɣ. Nein, kein verspäteter Aprilscherz. Dahinter verbirgt sich eine emulierte PDP-8, gesehen am 24C3 (2007). <a href="https://pixelfed.de/discover/tags/onepicaday?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#onepicaday</a> <a href="https://pixelfed.de/discover/tags/vintagecomputing?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#vintagecomputing</a> <a href="https://pixelfed.de/discover/tags/retrocomputing?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#retrocomputing</a> <a href="https://pixelfed.de/discover/tags/dec?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#dec</a> <a href="https://pixelfed.de/discover/tags/pdp8?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#pdp8</a> <a href="https://pixelfed.de/discover/tags/24c3?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#24c3</a>

Peter Bosch<a href="https://hsnl.social/@revspace" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@revspace</a> After a few days of work, implementing 3 missing libc functions, repairing an extra 4MB of RAM, hacking around toolchain issues, we finally got Lynx 2.8.2 compiled and running on the VAX-11/750 (in 4.3 BSD Quasijarus)! That means we got to browse the (non-HTTPS) web using no equipment or parts newer than 1986 this side of the network (besides the AUI 10Base-T phy).<a href="https://hsnl.social/tags/retrocomputing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#retrocomputing</a> <a href="https://hsnl.social/tags/theoldweb" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#theoldweb</a> <a href="https://hsnl.social/tags/hackaday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#hackaday</a> <a href="https://hsnl.social/tags/dec" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#dec</a> <a href="https://hsnl.social/tags/vax11" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#vax11</a>

Peter BoschDecided to display the VAX-11/750 at the <a href="https://hsnl.social/@revspace" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@revspace</a> open day yesterday. All the hard work seems to have paid off, managed to get 18 hours of uptime out of it before shutting it down at the end of the day! <a href="https://hsnl.social/tags/unix" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#unix</a> <a href="https://hsnl.social/tags/retrocomputing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#retrocomputing</a> <a href="https://hsnl.social/tags/dec" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#dec</a> <a href="https://hsnl.social/tags/vax11" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#vax11</a> <a href="https://hsnl.social/tags/minicomputer" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#minicomputer</a> <a href="https://hsnl.social/tags/unixhistory" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#unixhistory</a> <a href="https://hsnl.social/tags/bsd" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#bsd</a>

IT NewsBooting a Desktop PDP-11 - Ever heard of VENIX? There were lots of variants of Unix back in the day, and VENI... - <a href="https://hackaday.com/2025/03/23/booting-a-desktop-pdp-11/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://hackaday.com/2025/03/23/booting-a-desktop-pdp-11/</a> <a href="https://schleuss.online/tags/retrocomputing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#retrocomputing</a> <a href="https://schleuss.online/tags/pdp" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#pdp</a>-11 <a href="https://schleuss.online/tags/unix" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#unix</a> <a href="https://schleuss.online/tags/dec" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#dec</a>

BASIC.AFHi all, we did our annual PDP-12 demo in Dr. Ted Pedersen's architecture class on Tuesday, and it went really well.In cleaning up / reorganizing after showing off our artifacts, I realized that we have something that I haven't seen on @bitsavers, but I maybe just didn't know where to look. It's a big poster of PDP-12 instructions -- it's kind of like the pocket reference in poster format. It is about 9.5x30 inches (24x76 cm). I scanned it in two pieces on the office machine and stitched it together with GIMP. I'll try to make a PDF version with OCR text. @bitsavers <a href="https://teh.entar.net/tags/vintagecomputing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#vintagecomputing</a> <a href="https://teh.entar.net/tags/retrocomputing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#retrocomputing</a> <a href="https://teh.entar.net/tags/pdp12" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#pdp12</a> <a href="https://teh.entar.net/tags/pdp" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#pdp</a> <a href="https://teh.entar.net/tags/dec" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#dec</a> <a href="https://teh.entar.net/tags/umdpdp12" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#umdpdp12</a>

User name cannot be blank 🇪🇺Reading Museum is hosting an exhibition marking more than 60 years since Digital Equipment Corporation (DEC) opened its first UK office<a href="https://www.theregister.com/2025/03/22/dec_reading_museum/" rel="nofollow noopener noreferrer" target="_blank">https://www.theregister.com/2025/03/22/dec_reading_museum/</a><a href="https://mastodon.sdf.org/tags/DEC" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#DEC</a> <a href="https://mastodon.sdf.org/tags/TheRegister" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#TheRegister</a>

Ubuntu PeronistaYou may use this <a href="https://mastodon.sdf.org/tags/DEC" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#DEC</a> <a href="https://mastodon.sdf.org/tags/VT100" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#VT100</a> <a href="https://mastodon.sdf.org/tags/terminal" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#terminal</a> <a href="https://mastodon.sdf.org/tags/beep" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#beep</a> as you wish. :sdf: <a href="https://mastodon.sdf.org/tags/Retrocomputing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Retrocomputing</a> <a href="https://mastodon.sdf.org/tags/feep" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#feep</a> <a href="https://mastodon.sdf.org/tags/pcspeaker" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#pcspeaker</a>

☮ ♥ ♬ 🧑‍💻<a href="https://mastodon.sdf.org/@larsbrinkhoff" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@larsbrinkhoff</a> “The launch of Digital Equipment Corporation’s PDP-1 (Programmed Data Processor-1) computer in 1959 marked a radical shift in the philosophy of computer design.This on-line exhibition covers the history of this groundbreaking computer and the Computer History Museum’s recent restoration of a PDP-1 to working order.”<a href="https://ioc.exchange/tags/DEC" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#DEC</a> / <a href="https://ioc.exchange/tags/PDP1" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PDP1</a> / <a href="https://ioc.exchange/tags/PDP" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PDP</a> / <a href="https://ioc.exchange/tags/BBN" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#BBN</a> / <a href="https://ioc.exchange/tags/MIT" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MIT</a> <<a href="https://www.computerhistory.org/pdp-1/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.computerhistory.org/pdp-1/</a>>

Mark GardnerDid I just do a <a href="https://social.sdf.org/tags/Markdown" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Markdown</a> conversion of Mark Russinovich’s seminal 1998 article on <a href="https://social.sdf.org/tags/WindowsNT" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#WindowsNT</a> (and by extension, all modern versions of <a href="https://social.sdf.org/tags/MicrosoftWindows" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MicrosoftWindows</a>)’ debt to <a href="https://social.sdf.org/tags/DEC" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#DEC</a>’s <a href="https://social.sdf.org/tags/VMS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#VMS</a> <a href="https://social.sdf.org/tags/OperatingSystem" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#OperatingSystem</a>? Just so I could have a decent copy apart from the dusty carried-over archived version at <a href="https://www.ITProToday.com/server-virtualization/windows-nt-and-vms-the-rest-of-the-story" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.ITProToday.com/server-virtualization/windows-nt-and-vms-the-rest-of-the-story</a> ?Why yes, yes I did. Why not?<a href="https://social.sdf.org/tags/Windows" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Windows</a> <a href="https://social.sdf.org/tags/RetroComputing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#RetroComputing</a> <a href="https://social.sdf.org/tags/VAX" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#VAX</a>

Renaissance DorkThe <a href="https://social.vivaldi.net/tags/DEC" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#DEC</a> <a href="https://social.vivaldi.net/tags/Rainbow" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Rainbow</a> never officially supported <a href="https://social.vivaldi.net/tags/Windows" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Windows</a>, since it came too late to the market to be the bridge between CP/M and <a href="https://social.vivaldi.net/tags/DOS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#DOS</a> that it wanted to be, with PCs already dominating the market. But some dedicated DEC engineers wanted to see Windows run on the Rainbow. And they did. And you can, too.<a href="https://social.vivaldi.net/tags/cpm" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#cpm</a> <a href="https://social.vivaldi.net/tags/digital" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#digital</a> <a href="https://social.vivaldi.net/tags/microsoft" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#microsoft</a> <a href="https://social.vivaldi.net/tags/retrocomputing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#retrocomputing</a> <a href="https://social.vivaldi.net/tags/vintagecomputing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#vintagecomputing</a> <a href="https://social.vivaldi.net/tags/z80" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#z80</a> #8088 <a href="https://renaissancedork.com/rainbow-through-windows/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://renaissancedork.com/rainbow-through-windows/</a>

Irish MASMSFrom <a href="https://pixel.infosec.exchange/discover/tags/efm?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#efm</a> <a href="https://pixel.infosec.exchange/discover/tags/eflea?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#eflea</a> <a href="https://pixel.infosec.exchange/discover/tags/electronicsfleamarket?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#electronicsfleamarket</a> today, many finds to behold in <a href="https://pixel.infosec.exchange/discover/tags/siliconvalley?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#siliconvalley</a> <a href="https://pixel.infosec.exchange/discover/tags/sillyvalley?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#sillyvalley</a> <a href="https://pixel.infosec.exchange/discover/tags/dec?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#dec</a> <a href="https://pixel.infosec.exchange/discover/tags/next?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#next</a> <a href="https://pixel.infosec.exchange/discover/tags/sunsolaris?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#sunsolaris</a> <a href="https://pixel.infosec.exchange/discover/tags/sun?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#sun</a> <a href="https://pixel.infosec.exchange/discover/tags/zork?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#zork</a> <a href="https://pixel.infosec.exchange/discover/tags/keyboard?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#keyboard</a> <a href="https://pixel.infosec.exchange/discover/tags/vintagecomputing?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#vintagecomputing</a> <a href="https://pixel.infosec.exchange/discover/tags/vintagecomputing?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#vintagecomputing</a> <a href="https://pixel.infosec.exchange/discover/tags/vintagecomputint?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#vintagecomputint</a> <a href="https://pixel.infosec.exchange/discover/tags/vintagecomputer?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#vintagecomputer</a> <a href="https://pixel.infosec.exchange/discover/tags/vintagecomputers?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#vintagecomputers</a> <a href="https://pixel.infosec.exchange/discover/tags/vintagecomputalk?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#vintagecomputalk</a> <a href="https://pixel.infosec.exchange/discover/tags/vintagehardware?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#vintagehardware</a> <a href="https://pixel.infosec.exchange/discover/tags/computerHistory?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#computerHistory</a> <a href="https://pixel.infosec.exchange/discover/tags/retro?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#retro</a> <a href="https://pixel.infosec.exchange/discover/tags/retrocomputing?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#retrocomputing</a> <a href="https://pixel.infosec.exchange/discover/tags/retroComputers?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#retroComputers</a> <a href="https://pixel.infosec.exchange/discover/tags/WallOfRetro?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#WallOfRetro</a> <a href="https://pixel.infosec.exchange/discover/tags/retroTech?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#retroTech</a> <a href="https://pixel.infosec.exchange/discover/tags/retroTechnology?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#retroTechnology</a> <a href="https://pixel.infosec.exchange/discover/tags/nerdsOfVintage?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#nerdsOfVintage</a> <a href="https://pixel.infosec.exchange/discover/tags/happyNerding?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#happyNerding</a> <a href="https://pixel.infosec.exchange/discover/tags/computer?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#computer</a> <a href="https://pixel.infosec.exchange/discover/tags/tech?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#tech</a> <a href="https://pixel.infosec.exchange/discover/tags/computerHardware?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#computerHardware</a> <a href="https://pixel.infosec.exchange/discover/tags/SF?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#SF</a> <a href="https://pixel.infosec.exchange/discover/tags/sanfran?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#sanfran</a> <a href="https://pixel.infosec.exchange/discover/tags/sanfrancisco?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#sanfrancisco</a> <a href="https://pixel.infosec.exchange/discover/tags/sanfrannerds?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#sanfrannerds</a>

ITs History!<a href="https://pixelfed.social/discover/tags/PDP?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#PDP</a>-1 <a href="https://pixelfed.social/discover/tags/minicomputers?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#minicomputers</a> by <a href="https://pixelfed.social/discover/tags/DEC?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#DEC</a> been powerful enough to process and <a href="https://pixelfed.social/discover/tags/display?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#display</a> <a href="https://pixelfed.social/discover/tags/vector?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#vector</a> <a href="https://pixelfed.social/discover/tags/graphics?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#graphics</a>. So the first <a href="https://pixelfed.social/discover/tags/computergame?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#computergame</a> ran on <a href="https://pixelfed.social/discover/tags/Digital?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#Digital</a> <a href="https://pixelfed.social/discover/tags/Equipment?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#Equipment</a> in the <a href="https://pixelfed.social/discover/tags/1960s?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#1960s</a> — long before <a href="https://pixelfed.social/discover/tags/microcomputers?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#microcomputers</a> came up. <a href="https://pixelfed.social/discover/tags/retrocomputing?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#retrocomputing</a> <a href="https://pixelfed.social/discover/tags/gaming?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#gaming</a> <a href="https://pixelfed.social/discover/tags/hardware?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#hardware</a> <a href="https://pixelfed.social/discover/tags/illustration?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#illustration</a> <a href="https://pixelfed.social/discover/tags/legendary?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#legendary</a> <a href="https://pixelfed.social/discover/tags/IT?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#IT</a> <a href="https://pixelfed.social/discover/tags/vintage?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#vintage</a> <a href="https://pixelfed.social/discover/tags/punchcard?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#punchcard</a> <a href="https://pixelfed.social/discover/tags/computer?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#computer</a> <a href="https://pixelfed.social/discover/tags/art?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#art</a> <a href="https://pixelfed.social/discover/tags/lightpen?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#lightpen</a> <a href="https://pixelfed.social/discover/tags/FOSS?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#FOSS</a> <a href="https://pixelfed.social/discover/tags/SVG?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#SVG</a> <a href="https://pixelfed.social/discover/tags/Inkscape?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#Inkscape</a>

Blake PattersonSome artifacts from an active network closet down the hall, at the office in DC: a USRobotics 33.6 modem and a DEC VT520<a href="https://oldbytes.space/tags/VT520" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#VT520</a> <a href="https://oldbytes.space/tags/DEC" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#DEC</a> vitangecomputing <a href="https://oldbytes.space/tags/retrocomputing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#retrocomputing</a> <a href="https://oldbytes.space/tags/artifacts" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#artifacts</a> <a href="https://oldbytes.space/tags/foundatwork" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#foundatwork</a> <a href="https://oldbytes.space/tags/network" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#network</a> <a href="https://oldbytes.space/tags/closet" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#closet</a> <a href="https://oldbytes.space/tags/modem" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#modem</a> <a href="https://oldbytes.space/tags/USRobotics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#USRobotics</a> <a href="https://oldbytes.space/tags/CRT" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#CRT</a> <a href="https://oldbytes.space/tags/terminal" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#terminal</a> <a href="https://oldbytes.space/tags/photo" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#photo</a>

nivsOriginal, from my student placement year in 1993. A DEC sales rep handed them out but everyone was made to give them back as there were rules (ha!) against gifts from vendors. As I wasn’t really an employee I kept quiet, and kept the ruler.<a href="https://mastodon.social/tags/retrocomputing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#retrocomputing</a> <a href="https://mastodon.social/tags/dec" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#dec</a> <a href="https://mastodon.social/tags/alpha" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#alpha</a>

Paolo AmorosoDave Minter shared his experience in the 1990s with the precursors of modern email, discussion boards, instant messaging, and social systems. He told his story as a student in a DEC-centric world at a UK university linked to JANET and later to the Internet.<a href="https://paperstack.com/an_early_social_unnetwork/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://paperstack.com/an_early_social_unnetwork/</a><a href="https://fosstodon.org/tags/retrocomputing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#retrocomputing</a> <a href="https://fosstodon.org/tags/dec" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#dec</a>

csI'd been a member of <a href="https://mastodon.sdf.org/tags/SDF" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SDF</a> for about a year or so when I posted to <a href="https://mastodon.sdf.org/tags/BBoard" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#BBoard</a> to get rid of a load of 10-12 year old <a href="https://mastodon.sdf.org/tags/DEC" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#DEC</a> workstations and a server that my wife's ex left in his house. Someone responded, and we met down in Lewisville or somewhere. I don't know if that person was able to get them going. I have this hope/wish that they're still running somewhere and now 30ish-year-old computers living their lives.

Stephen Hoffman<a href="https://mstdn.ca/@jfmezei" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@jfmezei</a> :How long are data blocks for each entry in the in-CPU cache? 64 bits ? 128 bytes ? 1 page ? It varies. Most implementations will use one cache block size at a time at a given cache level, but that size and the size and the organization of the caches varies.:Does this vary from architecture to architecture or even inside an architecture? Yes. Alpha caching varied by processor and by implementation, all within the limits of the Alpha architecture.:Is it totally transparent when writing at OS level?Totally transparent? No.Details, such as what was locally called word tearing, alignment, memory timing, and memory lock processing, all get involved. Similar requirements can arise in apps.There are a few other wrinkles I’d prefer to not meet again, too.Mostly transparent? Yes.:And in multi core with coherent caches, when a core does a write to RAM, does memory controller propagate this to all other cores in case they have it cached? or does memory controller know which core has what in cache and send only relevant updates?It depends. Most of what I’ve met will mark the cache contents as being invalid, and will await the next opportunity to wait for main memory to load the data, or to wait for a load from L3, or such. I can’t recall ever working on a cache-coherent multiprocessor that tried to reload the cache everywhere.Alpha could load cache speculatively, or explicitly, or evict as needed.<a href="http://bitsavers.org/pdf/dec/alpha/system_reference/Alpha_System_Reference_Manual_Version_7_1997.pdf" rel="nofollow noopener noreferrer" translate="no" target="_blank">http://bitsavers.org/pdf/dec/alpha/system_reference/Alpha_System_Reference_Manual_Version_7_1997.pdf</a>WP has a reasonable description, as well: <a href="https://en.wikipedia.org/wiki/Cache_(computing)" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://en.wikipedia.org/wiki/Cache_(computing)</a>Deeper still:<a href="https://www.cs.swarthmore.edu/~kwebb/cs31/f18/memhierarchy/caching.html" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.cs.swarthmore.edu/~kwebb/cs31/f18/memhierarchy/caching.html</a>More for amusement, figures 5 and 6 nicely show the shifting scale of the complexity of modern computer systems:<a href="https://www.computer.org/csdl/journal/ts/2021/06/08704965/19HKUhJMVAQ" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.computer.org/csdl/journal/ts/2021/06/08704965/19HKUhJMVAQ</a><a href="https://infosec.exchange/tags/digitalequipment" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#digitalequipment</a> <a href="https://infosec.exchange/tags/dec" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#dec</a> <a href="https://infosec.exchange/tags/alpha" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#alpha</a> <a href="https://infosec.exchange/tags/computerarchitecture" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#computerarchitecture</a> <a href="https://infosec.exchange/tags/retrocomputing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#retrocomputing</a>

RenézuCodeIn other news, we made <a href="https://chaos.social/tags/Digital" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Digital</a> <a href="https://chaos.social/tags/DEC" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#DEC</a> <a href="https://chaos.social/tags/Alpha" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Alpha</a> <a href="https://chaos.social/tags/AXP" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#AXP</a> <a href="https://chaos.social/tags/Linux" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Linux</a> also great again: twitch.tv/t2sde/v/238707… ;-)

Pyrzout :vm:UNIX Archaeology Turns Up 1972 “V2 Beta” <a href="https://hackaday.com/2025/02/20/unix-archaeology-turns-up-1972-v2-beta/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://hackaday.com/2025/02/20/unix-archaeology-turns-up-1972-v2-beta/</a> <a href="https://social.skynetcloud.site/tags/Retrocomputing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Retrocomputing</a> <a href="https://social.skynetcloud.site/tags/SoftwareHacks" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SoftwareHacks</a> <a href="https://social.skynetcloud.site/tags/PDP" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PDP</a>-11/20 <a href="https://social.skynetcloud.site/tags/unix" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#unix</a> <a href="https://social.skynetcloud.site/tags/DEC" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#DEC</a>

Lorry2/ This is why I have never been a fan of Linux, people should be writing their own OSs 😜As an aside, I found this <a href="https://mstdn.social/tags/USENET" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#USENET</a> thread with some familiar names from 1987 about porting Minix to the Atari - I assume that would have been the ST then.<a href="https://www.linux.co.cr/unix-source-code/review/1987/0108.html" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.linux.co.cr/unix-source-code/review/1987/0108.html</a><a href="https://mstdn.social/tags/DEC" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#DEC</a> <a href="https://mstdn.social/tags/Digital" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Digital</a> <a href="https://mstdn.social/tags/PDP11" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PDP11</a> <a href="https://mstdn.social/tags/LSI11" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#LSI11</a> <a href="https://mstdn.social/tags/Minix" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Minix</a> <a href="https://mstdn.social/tags/Linux" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Linux</a> <a href="https://mstdn.social/tags/OperatingSystems" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#OperatingSystems</a> <a href="https://mstdn.social/tags/Decent" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Decent</a> <a href="https://mstdn.social/tags/Capacitors" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Capacitors</a> <a href="https://mstdn.social/tags/USENET" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#USENET</a> <a href="https://mstdn.social/tags/Atari" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Atari</a> <a href="https://mstdn.social/tags/AtariST" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#AtariST</a>

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