Apr 10, 2025
Thank you @sitoric ! Beautiful beautiful beautiful! Can't wait to commission you again!
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Thank you @sitoric ! Beautiful beautiful beautiful! Can't wait to commission you again!
🎄💾🗓️ Day 4: Retrocomputing Advent Calendar - The DEC PDP-11! 🎄💾🗓️
Released by Digital Equipment Corporation in 1970, the PDP-11 was a 16-bit minicomputer known for its orthogonal instruction set, allowing flexible and efficient programming. It introduced a Unibus architecture, which streamlined data communication and helped revolutionize computer design, making hardware design more modular and scalable. The PDP-11 was important in developing operating systems, including the early versions of UNIX. The PDP-11 was the hardware foundation for developing the C programming language and early UNIX systems. It supported multiple operating systems like RT-11, RSX-11, and UNIX, which directly shaped modern OS design principles. With over 600,000 units sold, the PDP-11 is celebrated as one of its era's most versatile and influential "minicomputers".
Check out the wikipedia page for some great history, photos (pictured here), and more -
And here's a story from Adafruit team member, Bill!
The DEC PDP-11 was the one of the first computers I ever programmed. That program was 'written' with a soldering iron.
I was an art student at the time, but spending most of my time in the engineering labs. There was a PDP-11-34 in the automation lab connected to an X-ray spectroscopy machine. Starting up the machine required toggling in a bootstrap loader via the front panel. This was a tedious process. So we ordered a diode-array boot ROM which had enough space to program 32 sixteen bit instructions.
Each instruction in the boot sequence needed to be broken down into binary (very straightforward with the PDP-11 instruction set). For each binary '1', a diode needed to be soldered into the array. The space was left empty for each '0'. 32 sixteen bit instructions was more than sufficient to load a secondary bootstrap from the floppy disk to launch the RT-11 operating system. So now it was possible to boot the system with just the push of a button.
I worked with a number DEC PDP-11/LSI-11 systems over the years. I still keep an LSI-11-23 system around for sentimental reasons.
Have first computer memories? Post’em up in the comments, or post yours on socialz’ and tag them #firstcomputer #retrocomputing – See you back here tomorrow!
I found this 1975 edition of "Notes from the underground" today at a flea market. It was buried away in a box underground and it was severely under priced (in my opinion at least) just 4 euros! It was the biggest steal and it has gold edges! I usually am not a fan of edges but this book? Oh goshhh I basically screamed "TAKE MY MONEY" at the sealer! I can't wait to read it after I finish my current read (pride and prejudice, if anyone is curious).
You can bet good money I am going back to the flea market tomorrow.
This book feels like a treasure and I am curious if anyone went through something similar?
Soundwave Battles Starscream For Leadership Of Decepticons: Skybound Transformers Issue 7 Summary
Soundwave Battles Starscream for Leadership of Decepticons Skybound Transformers Issue 7 Comic Book Summary Join us as we dive into the action-packed pages of "Skybound Transformers Issue 7," where Soundwave and Starscream clash in a high-stakes battle for leadership of the Decepticons! Experience the intense showdown between these iconic adversaries as they vie for control of the Decepticon faction. Subscribe now for an exhilarating summary of key events, epic combat sequences, and the thrilling narrative that unfolds in this pivotal issue of the Transformers series. Don't miss out on the excitement as Soundwave and Starscream face off in a struggle for supremacy!
He sees her: Gail and Eugene v. Joel and Ellie 2x2/2x6
Perspective Tilt...
Like changing the angle of a camera to capture the different shots of the same scene, Eugene's life and death - even for it's brief screen glimmer - illuminates so much more about TLOU 2x2. Apart from it's obvious plot anchors of Joel lying to Ellie and circling back to the Salt Lake, firstly it creates a new angle on the dynamic for Ellie/Gail. Gail is so hell bent on Ellie being a smart, manipulative liar, and now we know why. Ellie lashing out at Joel from her personal righteous but selfish and narrow lens of anger shatters a peaceful illusion of Eugene's final message for Gail because from Ellie's perspective she'd want the truth even if it hurt. Gail, despite being a mental health professional, might have at her core been more at peace with a lie (the truth made her spiral), which is why she takes aim at Ellie's dishonest speech to the Jackson Council. In part because she sees Ellie can be honest (brutally) *or* dishonest, the key feature being when it suits her with little regard for collateral (like Gail), a self-centered choice. She projects this trait onto Joel in the exchange "because you're selfish / because I love you" when, at least from Gail's perspective, that's more telling of Ellie's motivation. In all likelihood, Gail probably wishes that Ellie had maintained a lie to spare her pain. It makes the sting of resentment worse when a truth-teller is capable but unwilling to give a palliative lie, like an inverse light upon the untold conflict between Ellie and Joel, which is why I think Gail dials in even more mistrust and ire: she calls Ellie a liar in spite, which is the remnant echo of a plea.
And lastly Joel's scene with Eugene is so aching in the marrow of my bones, particularly because of a perfect line of dialogue (an I don't say perfect ever), pleading to the effect: "I need her last words for me! / If you love someone you can always see their face. / I can see her."
Those 2x6 lines and the visceral silence of the act reframe this 2x2 scene into an endless carnival mirror of love and pain for which I cannot express the depth of which I admire the writers while simultaneously falling past the bottom of despair.
Gif Sources X O X
Her last words for me — Close your eyes, it'll be worth it — I see her.
[Amonkhet Battlemap]Trial of Knowledge 32x56
The Trial of Knowledge tested one's mental capacity. Kefnet welcomed initiates to his trial with a spell that dampened their emotions and physical instincts, forcing them to depend on their mental acumen and spellcasting abilities.
More variations of this map:
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Transformers Volume 4 Issue 1 Skybound Comic Book Summary: Optimus Prime Bumblebee Starscream
