A mobile operating system (or mobile OS) is an operating system for smartphones, tablets, PDAs, or other mobile devices. While computers such as the typical laptop are mobile, the operating systems usually used on them are not considered mobile ones as they were originally designed for bigger stationary desktop computers that historically did not have or need specific "mobile" features. This distinction is getting blurred in some newer operating systems that are hybrids made for both uses.
Mobile operating systems combine features of a personal computer operating system with other features useful for mobile or handheld use; usually including, and most of the following considered essential in modern mobile systems; a touchscreen, cellular, Bluetooth, Wi-Fi, GPS mobile navigation, camera, video camera, speech recognition, voice recorder, music player, near field communication and infrared blaster.
Mobile devices with mobile communications capabilities (e.g. smartphones ) contain two mobile operating systems – the main user-facing software platform is supplemented by a second low-level proprietary real-time operating system which operates the radio and other hardware. Research has shown that these low-level systems may contain a range of security vulnerabilities permitting malicious base stations to gain high levels of control over the mobile device
#GOOGLE ANDROID
Android is a mobile operating system developed by Google, based on the Linux kernel and designed primarily fortouchscreen mobile devices such as smartphones and tablets. Android's user interface is mainly based on direct manipulation, using touch gestures that loosely correspond to real-world actions, such as swiping, tapping and pinching, to manipulate on-screen objects, along with a virtual keyboard for text input. In addition to touchscreen devices, Google has further developed Android TV for televisions, Android Auto for cars, and Android Wear for wrist watches, each with a specialized user interface. Variants of Android are also used on notebooks, game consoles, digital cameras, and other electronics.
Android has the largest installed base of all operating systems (OS) of any kind. Android has been the best selling OS on tablets since 2013, and on smartphones it is dominant by any metric.
Initially developed by Android, Inc., which Google bought in 2005, Android was unveiled in 2007 along with the founding of the Open Handset Alliance – a consortium of hardware, software, and telecommunication companies devoted to advancingopen standards for mobile devices. As of July 2013, the Google Play store has had over one million Android applications ("apps") published – including many "business-class apps" that rival competing mobile platforms – and over 50 billion applications downloaded. An April–May 2013 survey of mobile application developers found that 71% of developers create applications for Android. and a 2015 survey found that 40% of full-time professional developers see Android as their priority target platform, which is comparable to Apple's iOS on 37% with both platforms far above others. In September 2015, Android had 1.4 billion monthly active users.
#IOS (APPLE)
iOS (originally iPhone OS) is a mobile operating system created and developed by Apple Inc. and distributed exclusively forApple hardware. It is the operating system that presently powers many of the company's mobile devices, including the iPhone,iPad, and iPod touch. It is the second most popular mobile operating system in the world by sales, after Android. iPad tablets are also the second most popular, by sales, against Android since 2013, when Android tablet sales increased by 127%.
Originally unveiled in 2007, for the iPhone, it has been extended to support other Apple devices such as the iPod Touch(September 2007) and the iPad (January 2010). As of June 2016, Apple's App Store contained more than 2 million iOS applications, 725,000 of which are native for iPads. These mobile apps have collectively been downloaded more than 130 billion times.
#SYMBIAN
Symbian was a mobile operating system (OS) and computing platform designed for smartphones. Symbian was originally developed as a closed-source OS for PDAs in 1998 by Symbian Ltd.. Symbian OS was a descendant of Psion's EPOC, and runs exclusively on ARM processors, although an unreleased x86 port existed. Symbian was used by many major mobile phone brands, like Samsung, Motorola, Sony Ericsson, and above all by Nokia. As a pioneer that established the smartphone industry, it was the most popular smartphone OS on a worldwide average until the end of 2010 – at a time when smartphones were in limited use, when it was overtaken by Android, as Google and its partners achieved wide adoption.
Symbian OS was (from 2001) essentially a shell system and required an additional user interface (as middleware) to form a complete operating system. Symbian OS became prominent from the S60 (formerly Series 60) platform built by Nokia, first released in 2002 and powering most Nokia smartphones. Symbian eventually became the most widely used smart mobile operating system.UIQ was another Symbian user interface mostly used by Motorola and Sony Ericsson, whereas in Japan there was also the MOAPplatform. Applications of these interfaces were not compatible with each other, despite each being built atop Symbian OS. Nokia was the majority shareholder in Symbian Ltd. and purchased the entire share in 2008. The non-profit Symbian Foundation was then created to make a royalty-free successor to Symbian OS - seeking to unify the platform, S60 became the Foundation's favoured UI and UIQ stopped development. Symbian^1 (or S60 5th Edition) was created as a result in 2009. Symbian^2 was only used by carrierNTT DoCoMo, one of the members of the Foundation, for the Japanese market. Symbian^3 was released as in 2010, by which time it became fully open source. Symbian^3 received the Anna and Belle updates in 2011.
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