Mac OS X Turns Ten Years Old

155706 mac os x boxes

Today marks the tenth birthday of Mac OS X, which officially debuted on March 24th, 2001 as Mac OS X 10.0 with an internal codename of "Cheetah". As noted by Macworld, the release in retrospect was a milestone in Apple's transformation from a struggling computer company into the major technology behemoth it is today.

On March 24, 2001, the iMac was less than three years old, the iPod was still more than six months away, and Macs ran at astounding speeds of up to 733MHz. But most importantly, Apple on that day released the first official version of Mac OS X, changing the future of its platform forever.

Though nobody knew it at the time, the release, codenamed Cheetah, was the first step in transforming Apple from a company poised on the verge of disaster into the second most valuable company in the world.

While the impact of Mac OS X on Apple's products and the user experience they provide is undeniable, the early days of the operating system were anything but perfect, from a shaky public beta released in late 2000 through the public launch of Cheetah that necessitated rapid fixes and improvements that led to the release of Mac OS X 10.1 "Puma" just six months later. As Ars Technica noted in an extensive review of Mac OS X 10.0.0, the release showed "tremendous promise" despite obviously still being a work in progress.

Mac OS X shows tremendous promise, which is a nice way of saying that the 10.0 release is not quite ready for prime time. This is most certainly an early adopter's OS release. Interface responsiveness and effective stability are the two biggest fundamental problems, but missing features and compatibility issues rank just as high if you actually intend to use OS X as a full Mac OS 9 replacement: the 10.0 release cannot view DVD movies; printer drivers are still scarce; CD burning is not yet supported, even by Apple's own iTunes CD authoring application; and a lot of hardware (like my G3/400's serial port adapter to which my printer is attached) seem destined to be orphaned forever.

Mac OS X has obviously come a long way in the ten years since its initial release, but Apple has also become much more than a computer company: revolutionizing music consumption with the iPod, recreating the smartphone market with the iPhone, and most recently finally catapulting the tablet market into consumers' awareness with the iPad. In the process, Apple's operating system for mobile devices, iOS, has itself matured and yielded a number of new innovations and features.

Consequently, Apple has chosen to position the next step in the evolution of Mac OS X as "Back to the Mac", an effort to bring some of the most popular features of iOS to the Mac platform for the first time while retaining the familiarity, flexibility, and horsepower of Mac OS X. That next step, Mac OS X Lion, is set to debut sometime this summer, and developers and users should be able to learn much more about Apple's efforts at the company's Worldwide Developers Conference presumably set to occur in June or July.

Popular Stories

iPhone 17 Pro 3 4ths Perspective Aluminum Camera Module 1

New iPhone 17 Pro Details: Brighter Display, Best Battery Life, and More

Wednesday September 3, 2025 5:33 am PDT by
Apple's iPhone 17 Pro and iPhone 17 Pro Max models will feature a number of significant display, thermal, and battery improvements, according to new late-stage rumors. According to the Weibo leaker known as "Instant Digital," the iPhone 17 Pro models will feature displays with higher brightness, making it more suitable for use in direct sunlight for prolonged periods. The iPhone 16 Pro and...
iPhone 17 Pro Iridescent Feature 2

iPhone 17 and iPhone 17 Pro Prices Estimated Ahead of Apple Event Next Week

Tuesday September 2, 2025 1:50 pm PDT by
Just one week before Apple is expected to unveil the iPhone 17 series, an analyst has shared new price estimates for the devices. Here are J.P. Morgan analyst Samik Chatterjee's price estimates for the iPhone 17 series in the United States, according to 9to5Mac: Model Starting Price Model Starting Price Change iPhone 16 $799 iPhone 17 ...
iPhone 17 Pro Iridescent Feature 2

iPhone 17 Pro Clear Case Leak Reveals Three Key Changes

Sunday August 31, 2025 1:26 pm PDT by
Apple is expected to unveil the iPhone 17 series on Tuesday, September 9, and last-minute rumors about the devices continue to surface. The latest info comes from a leaker known as Majin Bu, who has shared alleged images of Apple's Clear Case for the iPhone 17 Pro and Pro Max, or at least replicas. Image Credit: @MajinBuOfficial The images show three alleged changes compared to Apple's iP...
iphone 16 pro ghost hand

iPhone 17 Pro: 5 Reasons Not to Upgrade This Year

Monday September 1, 2025 4:35 am PDT by
Apple will launch its new iPhone 17 series this month, and the iPhone 17 Pro models are expected to get a new design for the rear casing and the camera area. But more significant changes to the lineup are not expected until next year, when the iPhone 18 models arrive. If you're thinking of trading in your iPhone for this year's latest, consider the following features rumored to be coming to...
iPhone 17 Pro Dark Blue and Orange

iPhone 17 Release Date, Pre-Orders, and What to Expect

Thursday August 28, 2025 4:08 am PDT by
An iPhone 17 announcement is a dead cert for September 2025 – Apple has already sent out invites for an "Awe dropping" event on Tuesday, September 9 at the Apple Park campus in Cupertino, California. The timing follows Apple's trend of introducing new iPhone models annually in the fall. At the event, Apple is expected to unveil its new-generation iPhone 17, an all-new ultra-thin iPhone 17...
Apple Watch Ultra 2 Complications

Apple Watch Ultra 3 Coming Next Week: Eight Reasons to Upgrade

Thursday September 4, 2025 7:38 am PDT by
We're only days away from Apple's "Awe dropping" fall event scheduled to take place on Tuesday, September 9 – and along with the new iPhone 17 series, we're going to get a new version of the Apple Watch Ultra for the first time since 2023. By the time the Ultra 3 is unveiled, it will have been two years since the previous model arrived. The intervening period has left plenty of room for...