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  2. History of operating systems - Wikipedia

    en.wikipedia.org/wiki/History_of_operating_systems

    Microsoft Windows CE was the base for Pocket PC 2000, renamed Windows Mobile in 2003, which at its peak in 2007 was the most common operating system for smartphones in the U.S. In 2007, Apple introduced the iPhone and its operating system, known as simply iPhone OS (until the release of iOS 4), which, like Mac OS X, is based on the Unix-like ...

  3. iOS - Wikipedia

    en.wikipedia.org/wiki/IOS

    [8] iOS formerly also powered iPads until iPadOS was introduced in 2019 and the iPod Touch line of devices until its discontinuation. [9] iOS is the world's second most widely installed mobile operating system, after Android. As of December 2023, Apple's App Store contains more than 3.8 million iOS mobile apps. [10] iOS is based on macOS.

  4. macOS version history - Wikipedia

    en.wikipedia.org/wiki/MacOS_version_history

    The history of macOS, Apple's current Mac operating system formerly named Mac OS X until 2011 and then OS X until 2016, began with the company's project to replace its "classic" Mac OS. That system, up to and including its final release Mac OS 9 , was a direct descendant of the operating system Apple had used in its Mac computers since their ...

  5. iPhone OS 3 - Wikipedia

    en.wikipedia.org/wiki/IPhone_OS_3

    iPhone OS 3 was the last major version of iOS for which there was a charge for iPod Touch users to upgrade. Starting with iOS 4, iOS upgrades became free for all users, including users of the iPod Touch, as the Sarbanes–Oxley Act was revised to allow software upgrades for free with hardware that is not subscription-based.

  6. Mac operating systems - Wikipedia

    en.wikipedia.org/wiki/Mac_operating_systems

    The system was originally marketed as simply "version 10" of Mac OS, but it has a history that is largely independent of the classic Mac OS. It is a Unix -based operating system [ 11 ] [ 12 ] built on NeXTSTEP and other NeXT technology from the late 1980s until early 1997, when Apple purchased the company and its CEO Steve Jobs returned to ...

  7. iPhone OS 1 - Wikipedia

    en.wikipedia.org/wiki/IPhone_OS_1

    A team led by Jon Rubinstein worked on developing a lightweight Linux-based version, commonly referred to as Acorn, while another team led by Scott Forstall worked on developing a more compressed and streamlined version of Mac OS X, codenamed purple, to run on the ARM chipset. Tony Fadell, who then led the iPhone team said "It was a competing ...

  8. Architecture of macOS - Wikipedia

    en.wikipedia.org/wiki/Architecture_of_macOS

    An emulation layer called Blue Box allowed Mac OS applications to run within an actual instance of the Mac OS and an integrated Java platform. [1] The Objective-C developer tools and Frameworks were referred to as the Yellow Box and also made available separately for Microsoft Windows .

  9. Rhapsody (operating system) - Wikipedia

    en.wikipedia.org/wiki/Rhapsody_(operating_system)

    The experience of using a computer is determined mostly by its system software. In other words, Rhapsody will put Apple elegance on any personal computer, no matter who made it. Every PC in the world will become, in effect, a Mac. On the other hand, a Rhapsody triumph would mean nobody'd have to buy computers from Apple anymore.