These apps could be also added to the first generation iPod Touch by purchasing a software upgrade. You can add shortcuts to different internet pages on your home screen. The pages, represented by icons, are called Web Clips. Every iPod Touch model came equipped with Wi-Fi technology (802.11 b/g.). The iPod's fourth generation came equipped with Wi-Fi 802.11 b/g/n.
On July 11, 2008, the iOS (first called iPhone OS) 2.0 software update was made available for purchase. This update gave first generation iPod Touch users the opportunity of accessing the AppStore to download third-party applications, and also fixed some bugs.
On June 17, 2009, the iOS 3.0 was released. This software update allowed the iPod to run new apps, and unlocked the Bluetooth usage for the second generation iPods, so that AD2P and P2P apps could be executed. This also enabled file transfer with a non Apple device, such as Bluetooth enabled mobile phones or jailbroken iPods using software such as iBlueNova.
On June 21, 2010, Apple released the iOS 4.0 software update, which brought a large number of features to the second and third generation iPods for free. Some of these features are multitasking, app folders, backgrounds or iPad. However, multitasking and some other features were not available for the second generation iPod, not to mention that this software is completely incompatible with the first generation iPod Touch. Also, further software update support for the original iPod Touch has been discontinued.
The iOS operating system that the iPod runs is the same used the iPhone, and contains different aspects, elements and components from the Machintosh operating system MAC OS X Leopard (which was also developed by Apple). Every major release of the iOS (iOS 2.0, iOS 3.0, iOS 4.0) was made alongside a fresh model of the iPhone, which is an internet and multimedia enabled smartphone, developed, produced and marketed by Apple Inc. also. The software component in charge of animated graphics is one of those borrowed from the MAC OS X operating system. Like in the case of the iPhone, applications must be first checked and approved by Apple Inc. itself, and obtained only through Apple's online store called the AppStore. Doing otherwise could lead to serious software damage which may not be covered by the device's warranty.