RISC OS Open
@riscosopen.bsky.social
RISC OS Open Limited (ROOL) manages the source code to RISC OS. We are an organisation run on a largely voluntary basis. Find out more at https://www.riscosopen.org/
Fortran 77 is here, just a couple of years behind schedule!
www.riscosopen.org/news/article...
www.riscosopen.org/news/article...
November 20, 2025 at 7:48 PM
Fortran 77 is here, just a couple of years behind schedule!
www.riscosopen.org/news/article...
www.riscosopen.org/news/article...
It's great to see people with both the time and the inclination to make progress. Good luck with this project!
October 23, 2025 at 10:24 PM
It's great to see people with both the time and the inclination to make progress. Good luck with this project!
London is closer than you think!
www.riscosopen.org/news/article...
www.riscosopen.org/news/article...
October 23, 2025 at 10:22 PM
London is closer than you think!
www.riscosopen.org/news/article...
www.riscosopen.org/news/article...
Yes. Yes, we are allowed. Because enlisting a tool to help perform a task does not in any way relate to the claim that RISC OS is itself efficient.
August 4, 2025 at 7:35 PM
Yes. Yes, we are allowed. Because enlisting a tool to help perform a task does not in any way relate to the claim that RISC OS is itself efficient.
Thanks for your support.
August 4, 2025 at 4:12 PM
Thanks for your support.
RISC OS on Arm is community-driven with deep roots & real potential. We want to evolve it from historical curio to a lean, modern OS for the future. #OctopusVentures #CamInnovations #AmadeusCapital #IQCapital #InvestHeritage #ScaleUp
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August 4, 2025 at 2:58 PM
RISC OS on Arm is community-driven with deep roots & real potential. We want to evolve it from historical curio to a lean, modern OS for the future. #OctopusVentures #CamInnovations #AmadeusCapital #IQCapital #InvestHeritage #ScaleUp
Support @riscosopen.bsky.social www.riscosopen.org/content/docu...
Support @riscosopen.bsky.social www.riscosopen.org/content/docu...
Why not run a low carbon footprint operating system called RISC OS? Just one creative example of how you can make efficiency savings for @earthshotprize.bsky.social from your armchair. #ArmPowered
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August 3, 2025 at 4:04 PM
Why not run a low carbon footprint operating system called RISC OS? Just one creative example of how you can make efficiency savings for @earthshotprize.bsky.social from your armchair. #ArmPowered
Support @riscosopen.bsky.social in its mission. www.riscosopen.org/content/docu...
Support @riscosopen.bsky.social in its mission. www.riscosopen.org/content/docu...
Arm's processors power billions of devices. Help us to power the preservation of RISC OS, the platform that made it all possible. Let's keep Britain's computing story alive. #Arm #Legacy #Moonshots
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August 2, 2025 at 3:07 PM
Arm's processors power billions of devices. Help us to power the preservation of RISC OS, the platform that made it all possible. Let's keep Britain's computing story alive. #Arm #Legacy #Moonshots
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Support @riscosopen.bsky.social in its mission. www.riscosopen.org/content/docu...
I would guess around Jan 1987. Paul said when he met with the Acorn Board, they had five months.
August 1, 2025 at 4:08 PM
I would guess around Jan 1987. Paul said when he met with the Acorn Board, they had five months.
How did RISC OS begin? A Risc by THURsday (Arthur). Read more... www.theregister.com/2022/06/23/h... @theregister.com #RISCOS #TechHistory #RetroComputing #AcornComputers
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August 1, 2025 at 2:26 PM
How did RISC OS begin? A Risc by THURsday (Arthur). Read more... www.theregister.com/2022/06/23/h... @theregister.com #RISCOS #TechHistory #RetroComputing #AcornComputers
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Have you tried RISC OS? Comment below!
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July 31, 2025 at 4:30 PM
Have you tried RISC OS? Comment below!
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Don't forget to show some love to your friends. Thanks to everyone who has backed us over the past 19 years! #WorldFriendshipDay #InternationalDayOfFriendship #FriendshipDay2025
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July 30, 2025 at 3:39 PM
Don't forget to show some love to your friends. Thanks to everyone who has backed us over the past 19 years! #WorldFriendshipDay #InternationalDayOfFriendship #FriendshipDay2025
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Remember the Acorn Archimedes? Help us preserve the legacy that inspired a generation. @ComputingAtSch #RISCOS #RetroComputing #UkEdChat (Image credit PaulVernon1974)
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July 29, 2025 at 8:03 PM
Remember the Acorn Archimedes? Help us preserve the legacy that inspired a generation. @ComputingAtSch #RISCOS #RetroComputing #UkEdChat (Image credit PaulVernon1974)
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Search engines empower billions of people. Find your way to RISC OS and help us to grow our Open Source project. #Infrastructure #OpenSource
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July 28, 2025 at 3:08 PM
Search engines empower billions of people. Find your way to RISC OS and help us to grow our Open Source project. #Infrastructure #OpenSource
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Here's why we disagree: if you want to train car mechanics, you don't start them on a Formula One car, a Tesla, or a 2025 Mercedes S Class. That would be silly and likely confusing; you start with a simpler, more fundamental example, like a 2005 Ford Fiesta. Education builds upon fundamentals.
July 27, 2025 at 3:41 PM
Here's why we disagree: if you want to train car mechanics, you don't start them on a Formula One car, a Tesla, or a 2025 Mercedes S Class. That would be silly and likely confusing; you start with a simpler, more fundamental example, like a 2005 Ford Fiesta. Education builds upon fundamentals.
I _will_ go on: primitive graphics operations, writing software in assembly language, language interpreters, compiled high-level languages, makefiles & build systems, the value of high quality technical documentation, the Open Source movement. All valuable things to learn and RISC OS can illustrate.
July 27, 2025 at 3:30 PM
I _will_ go on: primitive graphics operations, writing software in assembly language, language interpreters, compiled high-level languages, makefiles & build systems, the value of high quality technical documentation, the Open Source movement. All valuable things to learn and RISC OS can illustrate.
Rubbish. There are many fundamentals: hardware abstraction layers, interrupt handlers, page tables & memory maps, timers, callbacks, vectors, user interface design philosophies... I could go on. RISC OS does all of these in a well-defined and easy to understand way.
July 27, 2025 at 3:21 PM
Rubbish. There are many fundamentals: hardware abstraction layers, interrupt handlers, page tables & memory maps, timers, callbacks, vectors, user interface design philosophies... I could go on. RISC OS does all of these in a well-defined and easy to understand way.
Proud to wear the England shirt? Here’s another way to support British legacy: preserve our computing heritage. @englandfootball.bsky.com @englandft.bsky.com #Lionesses #Euro2025
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July 27, 2025 at 3:16 PM
Proud to wear the England shirt? Here’s another way to support British legacy: preserve our computing heritage. @englandfootball.bsky.com @englandft.bsky.com #Lionesses #Euro2025
Support @riscosopen.bsky.social in its mission. www.riscosopen.org/content/docu...
Support @riscosopen.bsky.social in its mission. www.riscosopen.org/content/docu...
Modern platforms are indeed an essential part of learning STEM. But RISC OS isn’t just history. It’s compact, readable, well documented, and still actively maintained. This can make it valuable for learning core computer and OS concepts in a way complex, modern systems often obscure.
July 26, 2025 at 7:00 PM
Modern platforms are indeed an essential part of learning STEM. But RISC OS isn’t just history. It’s compact, readable, well documented, and still actively maintained. This can make it valuable for learning core computer and OS concepts in a way complex, modern systems often obscure.
Investing in British educational computing heritage means investing in our future innovators. @Raspberrypi.com #BritishTech #STEM
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July 26, 2025 at 2:58 PM
Investing in British educational computing heritage means investing in our future innovators. @Raspberrypi.com #BritishTech #STEM
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@techuk.bsky.social RISC OS on Arm is a British innovation story and part of our national computing heritage. Help preserve it for future generations. #BritishInnovation
Help @riscosopen.bsky.social continue its mission. www.riscosopen.org/content/docu...
Help @riscosopen.bsky.social continue its mission. www.riscosopen.org/content/docu...
July 25, 2025 at 2:56 PM
@techuk.bsky.social RISC OS on Arm is a British innovation story and part of our national computing heritage. Help preserve it for future generations. #BritishInnovation
Help @riscosopen.bsky.social continue its mission. www.riscosopen.org/content/docu...
Help @riscosopen.bsky.social continue its mission. www.riscosopen.org/content/docu...
Thanks for that! We'll do more checks next time...
July 25, 2025 at 10:53 AM
Thanks for that! We'll do more checks next time...
@education.gov.uk The roots of British tech run deep. RISC OS on Arm powered the dreams of a generation of British engineers and developers. Help preserve and advance this legacy.
#BritishTech #LegacySystems
Support @riscosopen.bsky.social in its mission:
www.riscosopen.org/content/docu...
#BritishTech #LegacySystems
Support @riscosopen.bsky.social in its mission:
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July 24, 2025 at 10:08 PM
@education.gov.uk The roots of British tech run deep. RISC OS on Arm powered the dreams of a generation of British engineers and developers. Help preserve and advance this legacy.
#BritishTech #LegacySystems
Support @riscosopen.bsky.social in its mission:
www.riscosopen.org/content/docu...
#BritishTech #LegacySystems
Support @riscosopen.bsky.social in its mission:
www.riscosopen.org/content/docu...