Here's my 1980 6502 based Ohio Scientific Instruments computer... don't think its going to be ready for #ChuckPeddleDay #6502
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Hashtag
#chuckpeddleday
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My homemade, hand-wired 6502 machine, presented in honor of #ChuckPeddleDay. 32K RAM, 16K ROM, 6850 ACIA, running at 921 kHz. It has the Apple 1 WozMon for a monitor, plus 4 BASICs, FOCAL, and Tiny PILOT for high-level programming.
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It‘s #ChuckPeddleDay !
Charles Ingerham „Chuck“ Peddle would habe turned 88 today.
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What a #ChuckPeddleDay surprise.
A new #65o2 game console.
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All hail the 6502 - #ChuckPeddleDay
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For #ChuckPeddleDay, I added an option to load the Oric Atmos ROM (1.1B that is) to the Virtual 6502 online emulator.
masswerk.at/6502/
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A large black box with a keypad and “KIM-100” printed on it.
100 times better than a KIM-1?
#ChuckPeddleDay
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A table of 6502 CPU machine language instructions along with their octal opcodes
I'm probably the only person on the planet who currently needs this, but here's a 6502 Opcode Reference... in octal!
#ChuckPeddleDay
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Photo of an electronics breadboard with several IC chips and wires. The chip in the upper left is a 65C02 CPU. An alphanumeric LCD screen in the lower right is displaying "Happy Chuck Peddle Day!"
Celebrating #ChuckPeddleDay with a 65C02.
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Happy #chuckpeddleday ! This KIMSI will be at PaCommEx NW in June 2026 for the 50th anniversary celebration of the KIM-1
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The KIM-1 was Commodore’s first big hit 🚀. If you want to learn more about it and the revolution it started 💡, you can read about it in this book 📘:
drive.google.com/file/d/1Xyvj...
#ChuckPeddleDay #kim1 #mos6502
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An original KIM-1 single board computer system, and a "modern" remake. The KIM-1 was a trainer / dev board for thed 6502 from 1976.
The office nerds held a special "show and tell" in honor of #ChuckPeddleDay. Chuck designed the 6502 CPU that made so many home computers possible and led to the microcomputer revolution of the 1980s.
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MOS got bought by Commodore who continued to sell the KIM-1. But the idea for a home computer was born - first the Commodore PET, then the VIC-20 and then the Commodore 64, one of the best selling computers EVER. All based on the 6502.
#ChuckPeddleDay
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The KIM-1 was a single board computer with a keypad and six LED displays designed to highlight the power of the then-new 6502 CPU designed by Chuck Peddle and team at MOS.
#ChuckPeddleDay
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As it’s #ChuckPeddleDay this KIM-1 emulator and 6502 trainer is free to download today!!
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#ChuckPeddleDay
It took some time to finally publish this program for the KIM-1 and today is a good day for it. Udo Juerss is the author.
KIM-1 Marquee retro.hansotten.nl/kim-1-marque/ source and binary.
Shows running text on a KIM-1 LED display
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My #65o2 Project right now:
Translating a KIM-1 game into german:
@fishhack66.bsky.social ported the game "Santa Paravia" (1978) to KIM-1 BASIC. And I'm translating it into german.
Show your 6502 Projects, because it's #ChuckPeddleDay
🎂Happy Birthday Chuck🎈, wherever you are!
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Today is #ChuckPeddleDay – a celebration of the brilliant mind behind the 6502!
So dig out your 6502 computers, power them up, dust them off, or just show them with pride.
Whether it’s a Commodore, Apple, Atari, BBC Micro or any homebrew project – today we honor the chip that started it all. 🚀🖥️✨
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Learning 6502 programming is still a valid way to hone your low-level coding skills. The 6502 is perhaps one of the earliest RISC CPUs, so you could trace the path from it to the Arm CPUs in just about everything today.
#ChuckPeddleDay
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You would be lucky to find a KIM-1 for sale today at an affordable price, but you can buy a “modern” replacement such as the PAL-II on Tindie in kit form. It still uses a real 6502.
#ChuckPeddleDay
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The KIM-1 got its name from Keyboard Input Monitor. It was designed as a 6502 development system but became a cult computer in its own right. It was first released in 1976 for about $245.
#ChuckPeddleDay
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📅 Tomorrow is Chuck Peddle Day!
Join us in celebrating Chuck Peddle, the brilliant engineer behind the iconic 6502 processor — the chip that powered legends like the KIM-1, Apple I and II, all early Commodore machines, Atari and Nintendo consoles.
Use the hashtag #chuckpeddleday 🧡💾
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Only 5 days left until Chuck Peddle Day on November 25th!
Let’s celebrate the creator of the legendary 6502 by powering up our 6502-based computers and game consoles. Whether KIM, C64, Atari oder NES -
Join in and share your setups, projects, or favorite games with the hashtag #chuckpeddleday! 🕹️💾🔥
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Spread the word: November 25 is #ChuckPeddleDay — celebrating the engineer behind the legendary MOS 6502 processor, the heart of so many home computers and game consoles of the 80s. 💾🕹️
If you own a machine powered by a 6502, fire it up on that day and share a photo with the hashtag #ChuckPeddleDay
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