The iPhone is a line of smartphone designed and introduce by apple inc.. that use apple’s iOS mobile operating system.the first generation of iPhone was announced by formar apple ceo Steve jobs on January 9th,2007 . Since then apple has annually released new iPhone models and iOS updates as of November 1 ,2018 , more the 2.2 billion iPhones are sold ..

Development of what was to become the iPhone become in 2004 , when apple started to gather a team of 1000 employees led by hardware engineer Tony fadell , software engineer scoot forstall and design engineer sir jonathn Lev to work on the highly confidential “project purple”. Apple ceo Steve jobs steered the original focus away the tablet towards a phone . Apple created the device during a secritive collaboration with Cingular wireless ( which becomes AT&T mobility) at the time _at an estimated development cost of us$150 million over thirty months according to Steve jobs “I”means “i mac” (and therefore “iPod “, “iPhone”, and” iPad “)which stands for individual , internet ,instruct , inform , and inspire

The iPhone runs an operating system known as iOS (formally iPhone os) . It is varient of the Darwin operating system core found in macos . Also included is the ” core animation ” software component from Mac os x v10.5 leopard . Together with the graphics hardware (and on the iPhone 3GS, openGL ES 2.0), it is responsible for the interfaces motion graphics.the iPhone comes with a set of bundled applications developed by apple , and supports downloading third party application through the app store .apple provides free updates to the operating system for the iPhone either wirelessly or through I tunes major new updates have historically accompined with new models

And then finally apple rejected the ” design by committee “

Android is a mobile operating system based on a modified version of the Linux kernel and other open source software,designed primarily for touchscreen mobile devices such as smartphones and tablets.android is developed by a cosortium of developers known as the open handset alliance and comerically sponsored by Google.It was unvelied in November 2007,with first comerical Android device,the HTC dream, being launched in September 2008

History Android inc.was founded in Palo Alto,in California,in October 2003 by Andy Rubin , rich Miner,Nick Sears,and chirs white. Rubin discribed the Android project as having “tramandous potential in developing smarter mobile devices that are more aware of it’s owners location and preferences “. The early intentions of the company were to develop an advanced operating system for digital cameras ,and this was the basis of it’s pitch to investors in april2004. Then the company decided that the market for the cameras was not large enough for it’s goals , and five months later it had diverted its efforts and was pitching Android as a handset operating system that would rival sumbian and Microsoft Windows mobile…..

Android mobile development.. Android is developed by the Google untill the latest changes and updates are ready to be released ,at which point the source code is made avalible to the Android open source project (aosp) an open source initiative led by Google . TheAOSP code can be found without modification on select devices ,mainly the former Nexus and current Android one series of devices.

Hardware of a Android mobile the main hardware development for the Android is ARM (the ARMv7 and ARMv8_A artitectures) ,with x86_64 artitectures are also supported In later versions of Android .the unofficial android_x86 project provided support for x86 artechitecture ahead of the official support.since 2012 , Android devices with Intel proceresss began to appear ,including phones and tablets .while gaining support for 64 bit platform ,Android was the first made to run on 64_bit x86 and then on ARM64 since Android 5.0 “lollipop”,64_bit variates of all platforms are supported in addition to the 32_bit variants . An unofficial experimental port of the operating system to the RISC_V artechitecture was released in2021.

From the above matter we concluded that there are different types of generation have in our Android mobile system

In our world many people are using social network apps like facebook,Instagram,WhatsApp ,Twitter, etc…….. Buy using these networking apps we have a lot of advantages and disadvantages

Some advantages of social networking. 1.stayin connected with friends…… 2.for means of communication…….. 3.keeping up_to_date news quickly………. 4.achiving a more personal connection……. 5.making friends with similar interests and likes…6.for free advertising…….. 7.for creative expression…….. 8.experience global exposure………. 9.creating a positive impact on the world ……… 10. The above expressions are advantages

Disadvantages of social networking. 1.lack of emotional connection…… 2.gives people a licence to be harmful…… 3.decrese face_to_face communication skills……. 4.conveys inauthentic expression of feelings……… 5.diminishes understanding and thoughtfulness…6.causes face_to_face interactions to feel disconnected…….. 7.facilitates laziness…… 8.creates a skewed self_ image…….. 9.reduces family closeness………. These are disadvantages of social networking

The above subject discribes the advantages and disadvantages of social networking