aaaaaaaaaaaand the order is placed. retro-spy.com/product/kim-... @zoggins.bsky.social

Was there a Rockwell KIM-1? A myth or? Yes and no. There is a KIM-1 by Rockwell in 1977. No, it is a MOS Technology KIM-1 PCB. Rockwell added documents with Rockwell title pages and contents 99% MOS Technology. The Rockwell KIM-1 is just an OEM product! retro.hansotten.nl/6502-sbc/kim...

To celebrate the 50 years of the 6500 family I have added two manuals in good quality to the manuals section: MCS6500 Hardware Manual August 1975 First Edition, Version 6500-10. – MCS6500 Programming Manual by Synertek, version 6500-50. retro.hansotten.nl/6502-sbc/kim...

Happy 50th anniversary to the MOS 6502! Could Microchess for the KIM-1 be the first commercially available game for the 6502? The yellow booklet of the left is version 1.0. You typed it in yourself but there was an optional cassette. Let me know your thoughts. #vintagecomputer #retrocomputer

Happy 50th Birthday, 6502!

Some of the oldest EPROMs I have. Once I had those connected to my KIM-1, we designed an EPROM programmer and EPROM card for it in 1978.

If you have a KIM-1 Rev B, D or E, I am looking for those to complete my KIM-1 collection. They are worthwhile, so I will pay a good price for it.

And yes, it does run the recently open-sourced Microsoft BASIC.

The updated Virtual KIM 6502 Emulator app has gone live: apps.apple.com/app/id154835...

Found in my archive, my first years in DEC we still used flowchart templates, on paper! ANSI X3.5.-1970

MS BASIC 6502 Open source. The source leaked already several years ago, pagetable has a nice post on that: Microsoft BASIC for 6502 Original Source Code [1978] – pagetable.com The Easter egg KIM-1 version answer 'A' to Memory Size question, clears the screen prints 'WRITTEN BY WEILAND AND GATES'

Bringing BASIC back: Microsoft’s 6502 BASIC is now Open Source | by Scott Hanselman & Stacey Haffner. opensource.microsoft.com/blog/2025/09... #oss #basic #programming #microsoft #opensource

Microsoft have released 6502 BASIC to open source. Read more here: opensource.microsoft.com/blog/2025/09...

Bringing BASIC back: Microsoft’s 6502 BASIC is now Open Source opensource.microsoft.com/blog/2025/09...

I had some fun typing in an old KIM-1 program published in Compute! 13. retro.hansotten.nl/6502-sbc/kim... Shown on youtube: youtu.be/-Gw63u-WVuk

It's been ages since I did anything with my 6502 homebrew computer, so here is a video about benchmarks against classic machines from back in the day - always a controversial topic!😂 #homebrewcomputer #mos6502 #basic #80s #6502cpu youtu.be/pQFLyB10Uj8

www.forum64.de/index.php?th... A variant of Lee Hart's 6502 badge, to celebrate the 6502 birthday #50birthday6502

Try the beta today! testflight.apple.com/join/vIXAtuLo

Got an iPhone or iPad? Try out this beta of a KIM-1 / Apple 1 / 6502 Assembler and let me know what you think. testflight.apple.com/join/vIXAtuLo

I can trace the first time a KIM -1 left the factory at MOS Technology to January 1976. The last KIM seems to be made in 1981. As reported by Eric Rehnke in Compute June 1981. #50yearsKIM1

With a recent acquired KIM-1 came some documents added to retro.hansotten.nl - KIM-1 Preliminary datasheet September 1976 - A book with five KIM-1 (standard KIM-1) experiments - The Computerist PLEASE package, monitor, command interpreter, time of day clock, many subroutines. Listing included.

Facebook, I am not a fan of Meta. Thugs. But as admin/owner of several groups like KIM-1 (1000+members ), 6502 CPU (6000+ members) it is tolerable. Now Facebook has blocked my account! So either they will unblock me or the groups will die.

Happy 50th birthday to the CPU that powered the home computer revolution: MOS Technology's 6502! The very first retail unit shipped from Norristown PA on 18th August, 1975.

When did you see and touched a KIM-1? For me it was the spring of 1977 at the office of the magazine Radio Bulletin, where I was part time editor. Dick Boer had a first edition KIM-1. #50yearsKIM1

In 1975 MOS Technology started delivery of 65XX ICs. 2025 marks the 50 year 6502 anniversary The earliest mentions of KIM-1 are January 1976. The date of the first edition of User Manual, and Byte article. So I propose to declare January 2026 as the 50th birthday of the KIM-1! #50yearsKIM1

When I acquired a KIM-1 Rev A,it came with some documentation. The timer description in the document 'KIM-1 Application Note 2 Interval Timer Operation' by MOS Technology is very interesting. 'KIM-1 Application Programs CT1' illustrate the usage of the timer. retro.hansotten.nl/6502-sbc/kim...

A beautiful case with an Elektor Junior came into my collection.

KIM clones with the same size and layout as the original KIM-1 as made by DevilishDesign. The second photos shows on the left the yet to build third blue PCB DevilishDesign KIM-1 kit, on the right the bare PCB of exact Eduardo Casino design.

With the Digitus KIM-1 on the left, center first version, right Rev A

My KIM-1 collection: From left to right Rev F Rockwell (my first KIM-1 1978), First version, Rev A, on the desk a Rev F

My KIM-1 collection: First version, Rev A, Rev F and Rev F Rockwell (my first KIM-1 1978)

What’s your happiest 6502 memory?

KIm-1 Rev A see through

A collection from my archive of MCS6500 Instruction set Summary Reference cards, from MOM Technology (with a 6501 version!). Rockwell, Synertek (SYM-1 and VIM) and Micrologic retro.hansotten.nl/mcs6500-inst...

tools. you never have enough. this will help repair

New version 1.7.3 of Mad Pascal, a 32-bit Turbo Pascal compiler for #Atari8bit and other MOS 6502 CPU-based computers github.com/tebe6502/Mad... #atari #retroprogramming

Friday KIM-clone. What have you got?

Latest mini retro computer announced! Slight problem in that the LED displays are too small to read, and the keypad requires a needle. Other than that: sweet! The list of games that come built-in include: Bagels, Minefield, and Hunt the Wumpus. #KIM1 #6502

What do you think about projects that mix old and new tech? I love it. github.com/eduardocasin...

Lots of clean scans of MTU documents here: retro.hansotten.nl/6502-sbc/mtu/

A new KIM-1 project to try. leonlong.space/project/hard...

In the beginning was the Word

Fourth KIM-1. Rev A received today. Next to Rev D, Rev G and first no-revision version.

Woohoo! Microsoft BASIC 2 loaded from paper tape! 😀

I lost an ebay auction on the Seawell Little Motherboard and Seawell 16K RAM board for KIM-1, SYM-1, and AIM 65. But I did get the photos (thank you seller for trying to get me in contact with the buyer) and hope to get scans of the documents. retro.hansotten.nl/6502-sbc/kim...

The greatest easter egg in gaming history - the hidden level 2 netzherpes.de/post/the-gre... #atari800 #pitfall2 #atari8bit

In Bad König, Westenwald, Germany, Matthias Schmitt and his wife have a museum called TECMUMAS. Here some photos of my visit in June 2025, MOS Technology KIM-4 and KIM-5 devices and the Synertek MDT 1000. TECMUMAS is home to about 1400 computers. tecmumas.de retro.hansotten.nl/tecmumas-dem...

During a visit to the TECMUMAS museum I found a Synertek MDT 1000 development system. Only known to me from an advertisement in Electronics 1980. retro.hansotten.nl/6502-sbc/syn... tecmumas.de

Thanks to a tip by Stefano B., compilers developed at the Vrije Universiteit, Amsterdam – Pascal-U 1977 – Pascal-VU 1979 I also added information about my time at the VU Stefano also traced the Pascal P3 compiler, 1976, missing link between Pascal P2 and P4 pascal.hansotten.com/2025/06/11/p...

New information at the Synertek pages: Images of my collection retro.hansotten.nl/6502-sbc/syn... VIM-1 Reference Manual Circuit Diagram SYM-1 SYM-1 Technical Notes retro.hansotten.nl/6502-sbc/syn... Manual KTM-2/80 retro.hansotten.nl/6502-sbc/syn... SYM-2 retro.hansotten.nl/6502-sbc/syn...