iPhone OS 1
|A version of the iOS operating system|
|Source model||Closed, with open source components|
|Initial release||June 29, 2007|
|Latest release||1.1.5 (4B1) / July 15, 2008|
|Platforms||iPhone (1st generation)|
iPod touch (1st generation)
|Kernel type||Hybrid (XNU)|
|Succeeded by||iPhone OS 2|
|Official website||Apple - iPhone at the Wayback Machine (archived June 7, 2007)|
iPhone OS 1, commonly referred to as iOS 1, is the first major release of iOS, Apple's mobile operating system. No official name was given on its initial release; Apple marketing literature simply stated that the iPhone runs a version of Apple's desktop operating system, macOS, which used to be known as Mac OS X. On March 6, 2008, with the release of the iPhone software development kit (iPhone SDK), Apple named it iPhone OS (they later went on to rename it "iOS" on June 7, 2010). It was succeeded by iPhone OS 2 on July 11, 2008.
During the time of the iPhone's release, Apple was making many large, proactive changes to the company in order to shift the company in a direction of higher technological capabilities. As Apple originated in the desktop computer industry, they still are producing new desktops and software to this day. This, however, is not the reason behind Apple's dominant success. Before the iPhones release, Apple had three devices, the Macintosh, iPod, and Apple TV. Following the iPhone's release, Apple began producing various products, integrating into the diverse technology manufacture they are today. Today Apple has 1.4 billion active devices, 900 million of those devices being iPhones.
The iPhone was able to be made after the merging of several companies into Apple. Most of the merging companies offered technologies such as gesture recognition in touch screen interface and mobile operating system software. These merges following the release of the iPhone were FingerWorks in 2005, Silicon Color in 2006, and Proximity also in 2006. 
iPhone OS 1 did not have the App Store or a Software Development Kit (SDK) for third party developers to create native applications. Instead, Apple directed developers to create web apps which could be accessed from Safari.
Introduction and initial release
iPhone OS 1 was introduced at the Macworld Conference & Expo at the Moscone Convention Center in San Francisco, with keynote address by Steve Jobs on January 9, 2007, along with the original iPhone. At the time, Jobs only said the iPhone ran "OS X".
iPhone OS 1.0 was released, alongside the iPhone, on June 29, 2007.
|1.0||1A543a||June 29, 2007||Initial release|
|1.0.1||1C25||July 31, 2007||Bug fixes, including a security fix for Safari|
|1.0.2||1C28||August 21, 2007||Bug fixes|
|1.1||3A101a||September 14, 2007||Initial release on iPod Touch (1st generation). Exclusive to this device. iPhone OS 1.1 features the iTunes Store for purchasing music, movies and ringtones|
|September 27, 2007||Adds the iTunes Store to the iPhone; security fixes.|
|1.1.2||3B48b||November 12, 2007||Bug fixes|
|1.1.3||4A93||January 15, 2008||New features including:
|1.1.4||4A102||February 26, 2008||Bug fixes|
|1.1.5||4B1||July 15, 2008||iPod Touch (1st generation) only|
- iPhone (1st generation) only
- iPod touch (1st generation) only
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