The Mac Observer

Skip navigational links

You're viewing an article in TMO's historic archive vault. Here, we've preserved the comments and how the site looked along with the article. Use this link to view the article on our current site:
Mac OS X Leopard Certified as 100% UNIX

Mac OS X Leopard Certified as 100% UNIX

by , 3:50 PM EDT, August 1st, 2007

The Open Group has certified Apple's Mac OS X version 10.5 as UNIX. Prior to Leopard, Apple had to describe Mac OS X as UNIX-like or UNIX-based.

It was a minor technical caveat by Apple that was easy to overlook.

In the early days of Mac OS X, 100 percent POSIX compliance was not considered a priority for a primarily consumer-based OS. The variations from standard POSIX APIs was very small, and didn't have any real effect on Mac OS X or its functionality. There were many more important tasks to attend to.

However, over time, it became increasingly important for Apple to have full UNIX certification for Mac OS X, and Leopard will have that distinction.

In some cases, that lack of certification could have had an influence on some government contracts. With some UNIX professionals, it occasionally brought some unfounded suspicion about Mac OS X being somehow inferior, somehow not real UNIX.

However, that will all be behind Apple when Leopard ships, and Apple will be able to claim that Leopard is UNIX. It seems like a small issue in general, but it's been a nagging issue in some very technical circles, best put into the history books at last.

  

Recent TMO Headlines - Updated September 18th

Fri, 4:37 PM
Raspberry Pi Smart Home Device Seeks Crowdfunding
Fri, 4:18 PM
How To Use FaceTime With Android and More
Fri, 2:44 PM
This iPhone 13 Case Gives you a Digital Business Card to Share
Fri, 2:25 PM
Do You Have 100 Terabytes of Free Storage? Download the Universe
Fri, 2:23 PM
First Look at ‘Foundation’ Coming to Apple TV+
Fri, 2:08 PM
FTC Reveals its Study on Acquisitions From Big Tech
Fri, 2:08 PM
Apple Moves More Devices from Lightning to USB-C
Fri, 1:50 PM
Security Friday: Phishin and Strippin – TMO Daily Observations 2021-09-17
Fri, 1:46 PM
5 Decentralized Services for VPN, Web Browsing, Messaging, and More
Fri, 12:26 PM
Apple TV+: 'See' Season Two 'New World' Featurette
Fri, 12:05 PM
Recap of 'The Morning Show' Season One
Fri, 11:47 AM
Apple Once Threatened to Remove Facebook From App Store Over Human Trafficking
  • __________
  • Buy Stuff, Support TMO!
  • Podcast: Mac Geek Gab
  • Podcast: Daily Observations
  • TMO on Twitter!