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
Menopause
125 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
AngerDanger
125 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
Dayv
125 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
Slix
125 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
Ingot
125 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
Analog Kid
125 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)
Read All Comments

Popular Stories

Generic iOS 19 Feature Mock Light

iOS 19 Leak Reveals All-New Design

Friday January 17, 2025 2:42 pm PST by
iOS 19 is still around six months away from being announced, but a new leak has allegedly revealed a completely redesigned Camera app. Based on footage it obtained, YouTube channel Front Page Tech shared a video showing what the new Camera app will apparently look like, with the key change being translucent menus for camera controls. Overall, the design of these menus looks similar to...
Read Full Article
2024 App Store Awards

Apple Explains Why It Removed TikTok From the App Store in the U.S.

Sunday January 19, 2025 6:58 am PST by
Apple on late Saturday removed TikTok from the App Store in the U.S., and it has now explained why it was required to take this action. Last year, the U.S. passed a law that required Chinese company ByteDance to divest its ownership of TikTok due to potential national security risks, or else the platform would be banned. That law went into effect today, and companies like Apple and Google...
Read Full Article • 241 comments
2024 iPhone Boxes Feature

Apple Changes Trade-In Values for iPhones, iPads, Macs, and More

Thursday January 16, 2025 6:45 am PST by
Apple today adjusted estimated trade-in values for select iPhone, iPad, Mac, and Apple Watch models in the U.S., according to its website. Some values increased, while others decreased. The changes were not too significant, with most values rising or dropping by $5 to $50. We have outlined some examples below: Device New Value Old Value iPhone 15 Pro Max Up to $630 U ...
Read Full Article • 64 comments
Generic iOS 18

Everything New in iOS 18.3 Beta 3

Thursday January 16, 2025 12:39 pm PST by
Apple provided the third beta of iOS 18.3 to developers today, and while the betas have so far been light on new features, the third beta makes some major changes to Notification Summaries and also tweaks a few other features. Notification Summary Changes Apple made multiple changes to Notification Summaries in response to complaints about inaccurate summaries of news headlines. For...
Read Full Article • 28 comments
iOS 19 Roundup Feature

iOS 19 Rumored to Be Compatible With These iPhones

Saturday January 18, 2025 10:28 am PST by
iOS 19 will not drop support for any iPhone models, according to French website iPhoneSoft.fr. The report cited a source who said iOS 19 will be compatible with any iPhone that can run iOS 18, which would mean the following models: iPhone 16 iPhone 16 Plus iPhone 16 Pro iPhone 16 Pro Max iPhone 15 iPhone 15 Plus iPhone 15 Pro iPhone 15 Pro Max iPhone 14 iPhon...
Read Full Article
iPhone SE Dynamic Island Majin Bu

iPhone SE 4 Leak Shows Dynamic Island, Casts Doubt on Rumored 'iPhone 16E' Name

Monday January 20, 2025 9:01 am PST by
A new iPhone SE is widely rumored to launch this year, and the device has potentially been confirmed today by known leaker Evan Blass. In a private social media post, Blass shared an image of what appears to be source code mentioning an iPhone SE (4th Gen), which casts doubt on the alternative "iPhone 16E" name rumored for the device. However, the name in the source code could be a...
Read Full Article • 139 comments
airtag 4 pack blue

AirTag 2 Launching This Year With These 3 New Features

Sunday January 19, 2025 8:11 am PST by
After a four-year wait, a new AirTag is finally expected to launch in 2025. Below, we recap rumored upgrades for the accessory. A few months ago, Bloomberg's Mark Gurman said Apple was aiming to release the AirTag 2 around the middle of 2025. While he did not offer a more specific timeframe, that means the AirTag 2 could be announced by the end of June. The original AirTag was announced...
Read Full Article
iPad Pro vs iPhone 17 Air Feature

Here's How Thin the iPhone 17 Air Might Be

Friday January 17, 2025 3:38 pm PST by
For the last several months, we've been hearing rumors about a redesigned version of the iPhone 17 that Apple might call the iPhone 17 "Air," or something along those lines. It's going to replace the iPhone 17 Plus as Apple's fourth iPhone option, and it will be offered alongside the iPhone 17, iPhone 17 Pro, and iPhone 17 Pro Max. We know the iPhone 17 Air is going to be super slim, but...
Read Full Article • 224 comments