I added more compiler and a treasure trove of documentation for #MSDOS programming!

#RetroDev #RetroComputing #RetroDevelopment #DOS

@dec_hl Good list! I'll add a few of my favorites:

BCC - a "barely ANSI" C compiler, but generates small binaries (64+64 com). Great if I'm making something small, like a retro implementation of something.

Edlin - great no frills editor that I use without irony to edit files like batch files and makefiles. I've sometimes written entire readme files in it.

OpenWatcom FORTRAN 77 - I sometimes write a little FORTRAN, and this goes a long way.

#retrocomputing #retro #programming

The DOS Game Jam link is active!

https://itch.io/jam/dosember-game-jam

Although I'm using DOSember as an excuse to run this, anyone can join!

The jam runs all the way until the end of November. Please feel free to get involved! 😊

#msdos #retrogaming #retrocomputing #gamedev #dosgaming #dosember

Es hat mich tatsächlich über ein Jahr beschäftigt, aber ab sofort ist das IBM Betriebssystem PC DOS 2000 mit vollständigem, deutschem Handbuch komplett im Internet Archive abrufbar. Das sind insgesamt 686 Seiten in 300dpi, sauber gescannt und digital restauriert.

Bei PC DOS 2000 handelte es sich um die letzte offizielle Vollversion von DOS aus dem Jahre 1998, bereits mit sämtlichen Y2K Updates. Voll kompatibel zu Windows 3.x und Spielen für MS-DOS!

Schachtel: https://archive.org/details/pcdos_2000_de_box
Disketten: https://archive.org/details/pcdos_2000_de
CD-ROM: https://archive.org/details/pcdos_2000_de_cdrom
Handbuch: https://archive.org/details/pcdos_2000_de_handbuch

Viel Spaß!

#RetroComputing #DOSGaming #DOSGames #RetroGaming #MSDOS #PCDOS #IBM #Manual #Handbuch #Microsoft #Disketten #KryoFlux

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Die deutsche Schachtel von PC DOS 2000, jetzt verfügbar im Internet Archive.

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Das deutsche Handbuch von PC DOS 2000, jetzt verfügbar im Internet Archive.

Day /// of #worldcon in #seattle is today. Yesterday we had a talented chess player predict and beat CHEKMO-II in a very fun game

https://icm.museum

#retrogaming #chess #vintagecomputing #retrocomputing

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Chess playing pdp-8/e

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Chess playing pdp-8/e

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Chess playing pdp-8/e

This might very well be the most beautiful BIOS splash-screen ever. Could someone with more skills than I make a wallpaper version? c/o: https://www.os2museum.com/wp/8x19-text-mode-font-origins/

#intel #retrocomputing

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Screenshot of the BIOS splash screen from an intel motherboard. Unlike most BIOS splash screens, it's very beautiful and there are no JPEG artefacts :|

Today at #worldcon we had 2 successful humans that beat the PDP-8/e at chess.

Shall we play a game?

Come see us at booth 708 during the World Science Fiction Convention 2025 in Seattle

#retrocomputing #retrogaming #vintagegaming

#worldcon opens in 20 minutes and we’re along the East wall of the 2nd floor.
Come beat the PDP-8/e at chess or adventure and learn about 1960s #ai under the MIT AI labs Incompatible Timesharing System

https://icm.museum

#retrocomputing #retrogaming #vintagecomputing #seattle

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PDP-8

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Our table at world con

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PiDP-10

Hmmm. My quest to liberate old documents goes on, stumbled upon some vector graphics format that I can't find any converters for: Arts & Letters .ged (Graphic Environment Document, or similar)

Many illustrations are expressed in that format .. file header says "A&L- ARTS & LETTERS EDITOR v5.01 10-10-96"

Would like to find any type of converter, online or on Linux.

Boost for reach?

#digitalarchology #retrocomputing #vectorgaphics

Jenny’s Daily Drivers: FreeDOS 1.4 via @lproven https://lobste.rs/s/1fduyi #retrocomputing
https://hackaday.com/2025/08/06/jennys-daily-drivers-freedos-1-4/

My newest piece of networking gear - It has a collision light and a load meter!

#retrocomputing

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CentreCOM MR820TR Ethernet hub

Real computers use coaxial cable!

No seriously, I finally decided to try ThinNet out. I've used computers with it before but I never had to wire it myself. It was refreshingly simple.

The computer is a PS/2 Model 25 with a 3Com Ethernet card. The other end of the wire goes to a CentreCOM Ethernet hub which also has a ThinNet connector in addition to the twisted pair connectors.

#retrocomputing

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3Com ISA network card on a PS/2 Model 25 connected to 10Base2 Ethernet (ThinNet/CheaperNet)

We’re running our PDP-7 today, did you catch the twitch stream?

https://icm.museum

#retrocomputing #vintagecomputing

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A DEC PDP-7

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The IO panel on a PDP-7

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Console lights on the PDP-7

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Keying the console on the PDP-7

Do you remember using WordStar on the Televideo Tele-PC? Of course you don’t!
But now you can. Don’t you want to frob that keyboard?

#retrocomputing #dos #pc #wordstar #wordprocessor

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A televideo Tele-PC

Are you ready to receive your #severance ?

Come visit icm.museum this weekend for your next onboarding

#vintagecomputing #retrocomputing #retrogaming #dasher

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A DG dasher terminal and a Seattle Computer products S1000

Ever want to try Ken Thompson’s Space Travel? Check out https://icm.museum/?st to play it in the browser

#space #retrocomputing #retrogaming

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A type 340 display which was used for space travel

"Squirrel confusion face" - that look on your face when you discover a stash of things you previously purchased after forgetting about them, purchasing another one, and then trying to file it away.

#retrocomputing

I’m n 1971 the first coin-op video game “Galaxy Game” by Bill Pitts sought to commercialize Steve Russell’s PDP-1 game Spacewar! Has moved into our new large systems gallery.

https://icm.museum

#retrogaming #vintagecomputing #retrocomputing #stanford #mit #game #gaming

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Galaxy game in a warehouse

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Galaxy game console

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Four player galaxy game

Greetings professor Falken, can you explain this funny IMSAI?

It’s a HICKOK K6800 Joshua, which features a card buss and uses the Motorola 6800 microprocessor

https://icm.museum

#retrocomputing #vintagecomputing

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A M6800 MPU board

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The Hickok K6800

«Computers don’t think» - Still a valid point. #RetroComputing #IBM #Mainframe

https://youtu.be/q-gpM-KfVng?si=cMcZ98DVF2nwxaeN

Classic CDE (Common Desktop Environment) coming to OpenBSD https://www.undeadly.org/cgi?action=article;sid=20250730080301 #openbsd #cde #commondesktopenvironment #x #xwindows #desktop #retrocomputing #freesoftware #libresoftware #ports #packages

@vga256 I dug out the source code and put a small HTML wrapper around it to explain it.

This version of the code is the last version, dating back to October 1988. It includes buffering blocks in RAM to avoid the performance problem with writing each 128 byte block to disk, and two different ways to cheat and abort a perfectly good transfer to avoid getting charged.

38 years later I'm proud of the cleverness, but not proud of the cheating. ;-)

https://www.brutman.com/leech/leech.html

#retrocomputing

Don't get me wrong - I really like OS/2. But IBM never really made pretty things, did they?

And the alt text needs to be forced upon y'all in this one:

Short video clip showing a vector drawing of a green field with a road leading past some purple mountains in the background. There's a small blob of water next to the road. There are gradients everywhere: background, mountains, road, water..
The sun is orange (also gradient) with a drop shadow like only late 80s vector drawing software could. Corel Draw maybe? It reads "OS/2 Warp" in the top right corner.

There is an absurdly large metal pole with an even larger white sign full of names printed in a horribly-rendered font (probably System Proportional). The background of the sign is white and, thankfully, not gradient. I suspect this is due to technical limitation, not artistic ones.

#RetroComputing #OS2 #Warp #Ugly #IBM #BigBlue

@vga256 I and a friend discovered this vulnerability in 1984 or 1985, and I wrote my own little terminal program with Xmodem built in to take advantage of it. Those were the days ...

(I still have the source code and of course it was called "Leech". Back then that was a generic term for somebody who downloaded far more than they uploaded, so it was a naturally good name.)

#retrocomputing

Continuing with the IBM 5181 ...

Here we have the same image, printed using overstrike. It is marginally better looking, as the dots are more completely filled in.

Overstrike takes advantage of the fact that the printer mechanism isn't perfect, so the alignment of the head is slightly different on the second pass filling in more of the paper where the first pass might have missed.

#retrocomputing

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Another image printed using the the IBM 5181 printer. This print sample was made using overstrike - printing the same thing on the line twice to improve the print quality. The dots here are slightly more robust than in the standard print mode.

Continuing with the IBM 5181 ...

I was recently reminded about overstrike printing to improve the print quality on older dot matrix printers and I added it to my code. This sample shows a blow-up of an image generated by the printer, with just a single pass (no overstrike). The next image will show the same image, but printed with overstrike.

#retrocomputing

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Blowup of print from the IBM 5181 printer. This image was printed without using overstrike. Note the blurry pixels. This is a thermal printer and this is as about as good as it gets.

Not bad for a 40+ year old low-end thermal printer. The banding is probably due to the friction-feed mechanism which is touchy and slipping.

Pictured: an IBM 5155 Portable PC, printed on an IBM 5181 printer, otherwise known as the IBM Compact Printer. It's a serial printer that uses thermal fax paper in rolls and was designed for use with the IBM PCjr. It takes data at 1200 bps.

I wrote all of the code to convert a JPG to the printer codes, except the scaling code.

#retrocomputing

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IBM PC 5155 Portable PC printed on an IBM 5181 thermal printer.

I'm taking just a quick sneak peek at the latest 86Box nightly build. I'm really looking forward to the official release v5.0.0 in a few weeks. The emulation does feel super smooth and the new 86Box VM Manager already looks beautiful.

#86Box #Emulation #RetroComputing #RetroGaming #Beta

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Running a few virtual machines using the latest 86Box nightly build.

Someone cool should go pick this up ok?

https://www.ebay.com.au/itm/205612650512

#retrocomputing

Es überrascht mich immer wieder, was man so alles noch spät Nachts im Netz findet, was man bisher doch noch gar nicht im Blick hatte!

Im Jahre 2023 wurden sämtliche ältere Versionen von SpeedCommander komplett als Freeware veröffentlicht, inkl. der 16-Bit Versionen 1,2 und III+ für Windows 3.1. Ich war jetzt nie der größte Fan dieses Datei-Managers, aber ich beschwere mich nicht über offiziell kostenlose Retro-Software.

Kommt in die Sammlung! Nice! 😃

https://www.speedproject.de/download/jubilaeumsversionen/

#RetroComputing #FileManager #Windows #Win31 #Win311 #WfW311 #DateiManager #SpeedCommander #90er

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SpeedCommander Webseite... mit kostenlosem Zeug. :-)

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SpeedCommander, Version 1 für Windows 3.1

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SpeedCommander, Version 2 für Windows 3.1

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SpeedCommander, Version III+ für Windows 3.1

Dave Plummer stopped by and gave us one of his mesmerizers which we almost immediately attached to the side of the Honeywell 6180 Multics maintenance panel.

https://icm.museum

#vintagecomputing #retrocomputing #museum #retrogaming

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an assortment of clocks, a mesmerizer, 6120 PDP-8/e replica and a Honeywell 6180 maintenance panel.

The contenders: QuickView Pro version (dvpro), Digital Sound System 3.1 (dss) and MPXPlay 1.67 (mpx). The file: Astral Projection's "Bizarre Contact" from the album "Ten".

Enjoy these clips :D

#Retrocomputing #VacationInMyHead #Multimedia