As an entire computer that fits on our wrists, the Apple Watch already seems like something out of a science fiction novel, but a new video from software developer Nick Lee demonstrates just how far computing has come in the last two decades.

Lee's hacked an Apple Watch running watchOS 2 to run a port of a 20-year-old Macintosh OS, System 7.5.5, using the Mini vMac Macintosh emulator.


When System 7.5.5 was released in 1996, it required a full PowerPC-based Mac to run, and in their smallest incarnation, those machines were clunky, heavy, and pretty far from the portable devices that we have now. Today, that same operating system can run on a tiny 38mm to 42mm wrist-worn computer.

Top Rated Comments

Menopause Avatar
124 months ago
Am I a bad person to find this to be a pointless waste of time? Just my humble opinion.. why do people do this? Run haggy old OS on new devices and announce it? Yes, software is much more efficient today and hardware is minimalistic compared to 20 years back. Also, bears crap in the woods. So? Please feel free to join in and bash my existence if you disagree.
Score: 14 Votes (Like | Disagree)
AngerDanger Avatar
124 months ago
@Menopause, I'm a worse person for only being able to focus on the bloody portrait video!
Score: 13 Votes (Like | Disagree)
Dayv Avatar
124 months ago
Am I a bad person to find this to be a pointless waste of time? Just my humble opinion.. why do people do this? Run haggy old OS on new devices and announce it? Yes, software is much more efficient today and hardware is minimalistic compared to 20 years back. Also, bears crap in the woods. So? Please feel free to join in and bash my existence if you disagree.
Your existence is terrible.
Score: 12 Votes (Like | Disagree)
Slix Avatar
124 months ago
While incredibly useless in practice, the idea of it is very cool. We've come a far way! :D
Score: 10 Votes (Like | Disagree)
Ingot Avatar
124 months ago
('https://www.macrumors.com/2015/06/22/apple-watch-runs-20-year-old-mac-os/')


As an entire computer that fits on our wrists, the Apple Watch already seems like something out of a science fiction novel, but a new video from software developer Nick Lee ('https://twitter.com/nickplee') demonstrates just how far computing has come in the last two decades.

Lee's hacked an Apple Watch running watchOS 2 to run a port of a 20-year-old Macintosh OS, System 7.5.5, using the Mini vMac Macintosh emulator ('http://www.gryphel.com/c/minivmac/').



When System 7.5.5 was released in 1996, it required a full PowerPC-based Mac to run, and in their smallest incarnation, those machines were clunky, heavy, and pretty far from the portable devices that we have now. Today, that same operating system can run on a tiny 38mm to 42mm wrist-worn computer.

Article Link: Video of 20-Year-Old Mac Operating System Running on an Apple Watch ('https://www.macrumors.com/2015/06/22/apple-watch-runs-20-year-old-mac-os/')
Just to add to the pointless discussion, why do this? Because we can. The cool factor in my mind is through the roof. In a few years snow leopard will run on the watch.
Score: 10 Votes (Like | Disagree)
Analog Kid Avatar
124 months ago
Kudos on proper use of portrait video! Perfect for mobile viewing, ideally suited to the Watch's own portrait display, and elegantly showcasing the chosen strap style.
The chosen strap style remains the same from beginning to end. If something doesn't change, there is no reason to use video to capture it.

Capturing the strap wasted half of the available horizontal field of view even in portrait, and then wastes about 75% of the landscape viewing area on my display when played back.

Portrait video: always wrong
Score: 9 Votes (Like | Disagree)

Popular Stories

Generic iOS 18

Apple Announces iOS 18.2 Launching Today With These New Features

Wednesday December 11, 2024 5:23 am PST by
Apple has announced that iOS 18.2, iPadOS 18.2, and macOS Sequoia 15.2 will be released today following more than six weeks of beta testing. For the iPhone 15 Pro and iPhone 16 models, the update introduces additional Apple Intelligence features, including Genmoji for creating custom emoji, Image Playground and Image Wand for generating images, and ChatGPT integration for Siri. There is also ...
iphone 17 pro concept render cameras

Major iPhone 17 Pro Redesign Backed by Supply Chain Info, Claims Leaker

Thursday December 12, 2024 4:36 am PST by
Next year's iPhone 17 Pro models will reportedly feature a major redesign, specifically centering around changes to the rear camera module, and now new supply chain information appears to confirm the striking change, according to a Chinese leaker. iPhone 17 Pro concept render Late last month, The Information's Wayne Ma claimed that the rear of the ‌iPhone 17‌ Pro and ‌iPhone 17‌ Pro...
m4 mac mini hands on

Cloud-Based M4 and M4 Pro Mac Mini Models Now Available

Wednesday December 11, 2024 7:34 am PST by
Developers now have access to cloud-based M4 and M4 Pro Mac mini units via MacWeb, a Silicon Valley-based provider of cloud services. The company has launched three configurations of the new Mac mini, powered by Apple's M4 and M4 Pro chips. Developers and IT teams can rent these machines for tasks ranging from basic development to advanced artificial intelligence modeling, providing an...
macOS Sequoia Night Feature

Apple Releases macOS Sequoia 15.2 With New Apple Intelligence Features

Wednesday December 11, 2024 10:02 am PST by
Apple today released macOS Sequoia 15.2, the second update to the macOS Sequoia operating system that was released in September. macOS Sequoia 15.2 comes over a month after the release of macOS Sequoia 15.1. Mac users can download the ‌macOS Sequoia‌ update through the Software Update section of System Settings. macOS Sequoia 15.2 adds Image Playground, an app that lets you create...
macbook air m2 13 inch

macOS Sequoia 15.2 Confirms New M4 MacBook Air Models Are Coming

Wednesday December 11, 2024 10:54 am PST by
Apple today made a mistake with its macOS Sequoia 15.2 update, releasing the software for two Macs that have yet to be launched. There is a software file for "Mac16,12" and "Mac16,13," which are upcoming MacBook Air models. The leaked software references the "MacBook Air (13-inch, M4, 2025)" and the "MacBook Air (15-inch, M4, 2025)," confirming that new M4 MacBook Air models are in...
maxresdefault

Apple Releases iOS 18.2 and iPadOS 18.2 With Genmoji, Image Playground, Siri ChatGPT and More

Wednesday December 11, 2024 10:03 am PST by
Apple today released iOS 18.2 and iPadOS 18.2, the second major updates to the iOS 18 and iPadOS 18 updates that came out in September. The new updates come over a month after Apple released iOS 18.1 and iPadOS 18.1. Subscribe to the MacRumors YouTube channel for more videos. The new software can be downloaded on eligible iPhones and iPads over-the-air by going to Settings > General >...
apple tv purple

New Apple TV and HomePod Mini Launching in 2025

Thursday December 12, 2024 10:39 am PST by
Apple plans to refresh both the Apple TV and the HomePod mini in 2025 as part of a major push into refreshing its smart home product offerings, reports Bloomberg's Mark Gurman. In a report on an upcoming Apple-designed Bluetooth and Wi-Fi chip, Gurman says that the chip will be introduced in a new Apple TV and HomePod mini that are "scheduled" for 2025. While there is no exact timeline...