Spacewar on the LINC was early and small.

#MIT AI memo 239 "HAKMEM" now comes with the original files from PDP-10 backup tapes. dspace.mit.edu/handle/1721....

Code for EINE, the first Emacs clone, has appeared. github.com/MITDDC/eine-...

A list of 39 timesharing systems that are available now for running on emulators. timereshared.com/os-list/

A new book about the PiDP-10, and what you can do with it. www.qsl.net/zl3dw/PiDP-1...

A game for the PDP-5. Help me type it. svn.so-much-stuff.com/svn/trunk/pd...

Hundreds of DECtapes being processed. icm.museum/blog/?p=241

Original CompuServe computer room, 1969. DEC PDP-10 (KA), MA-10 memory cabinets (16K 36 bit words each), RD-10 drum (for swapping), RP02 disk drives, oodles of DECtapes for offline customer storage. x.com/hkb73/status...

The Freeway Crossing game was written by Michael Irrgang in 1971, for the IMLAC PDS-1 computer. He made it for Earl Hunt, who was going to use it to measure reaction times in a psychology study. The game play is similar to the arcade game "Frogger" from 1981.

After fighting with QEMU, I finally managed to compile the sources of UniPress Emacs 2.20. It's really cool to see it working, but I can't type yet due to the keyboard issue that breaks nearly all the NeWS applications.

(hat tip @larsbrinkhoff.bsky.social ) Someone ported TOPS-20 Rogue to FreePascal. www.youtube.com/watch?v=6yK7...

New addition to the Emacs collection: UniPress Emacs V2.20 from 1989.

I've spent the last few months putting this one together, it's been the most fascinating of rabbit holes. The PDP-10 may not be the best know of mainframes, but it's been hugely influential on the world of computing we have now. youtu.be/ybO6bPcRmlY

March 22 marks the 60th anniversary of the introduction(*) of the Digital Equipment Corporation PDP-8, which more or less introduced the "minicomputer" as a new category of computer. It cost a mere $18,000 and fit on a desk, and while it was a small, simple computer, it became extremely popular.

New info about the PDP-3/CASINO just dropped. cp4space.hatsya.com/2025/03/18/c...

A piece about the PDP-1 and the Arpanet, written by @oscar-ceds.bsky.social. hackaday.io/project/2025...

www.reddit.com/r/PDP1/s/M3C... There was no subreddit for the PDP-1 so I made one.

Happy birthday PDP-10! #OnThisDay 58 years ago, the PDP-10 was first powered on. Whopee, it goes!

Joining Bluesky - with updates on Obsolescence Guaranteed and the PDP-11, PDP-10, PDP-10 replicas. The main web site: obsolescence.dev #PiDP-11, #PiDP-10, #PiDP-8

Progress on the new #PiDP-1 (logically, the new PDP-1 replica) is sufficient to open a Hackaday project page for it: hackaday.io/project/2025... One more month, is the idea, and then it is done! Angelo and I will be doing a two-week sprint that should tie up all the loose ends in April.

This is my blog about getting the SAIL PDP-10 back onto ARPANET. github.com/larsbrinkhof...

A six-part series about the creation of ARPANET and the birth of the Internet. www.inc.com/computerfreaks

PiDP-10 assembly speedrun. Can you beat this? www.youtube.com/watch?v=siuh...

Observe this totally realistic depiction of how you logged into ARPANET in 1980.

I think RFC 254 was due for a refresh. youtu.be/FQnE-nAxzmY

Good to see that timely documentation was as important then as it is now.

This will be the year of ARPANET on the desktop.

To negotiate the ARPANET Initial Connection Protocol, just follow this simple state diagram.

There were a bunch of CDC hosts on the ARPANET. Does anyone has an inkling whether some of this networking software has survived?

Feliz Navi!

I'd like to offer some UUCP resources for the modern world. www.tuhs.org/pipermail/tu... github.com/DoctorWkt/4b... sdf.org?tutorials/uucp

It's a start. Er, restart.

BBN Logo for the PDP-1. @masswerk.at, has anyone looked into typing/OCR'ing/running this? bitsavers.org/pdf/bbn/logo...

I submit that the oldest known "readme" file was created on the MIT AI lab PDP-10 on July 3, 1973 by David McDonald. The evidence is the file SHRDLU;%READ ME found on a backup tape.

Why not celebrate by getting a PiDP-10? obsolescence.dev/pidp10.html

Oscar Vermeulen sent out a Obsolescence Guaranteed Newsletter. Detailing the PiDP events of 2024; urges recreation of Arpanet. obsolescence.dev/obsolescence...

Happy DEC-9! Apropos nothing at all, I started on a simulation of the PDP-9 hardware, to spare anyone else from having to do that. 0/10 would not microcode again. github.com/larsbrinkhof...

Happy DEC-6!

If you care for some delightful vintage hacker culture, I invite you to check out "Alice's PDP-10" www.hactrn.net/sra/alice/

Hello World ! I am a new user on Blue Sky doing digital archiving for 1970s software of the first Stanford A. I. Lab.

out: Technical debt in: Technical therapy #pdp10

PDP-10 unboxing video. youtu.be/_13TAKuazhM

Maybe the hackers were right to reject society.

Live coding "hello world" in PDP-10 assembly language on ITS. www.youtube.com/watch?v=kVmF...

How to use the toggle switches to enter a program on the PiDP-10. youtu.be/XFmEHmySNT0

It runs.

This is the proper way to console a child.

I Was Promised A K-Machine, But All I Got Was This Lousy T-Shirt.