IOS 4 is the fourth version
of the iOS mobile
operating system designed by Apple
Inc.. It was released on June 21, 2010, and was the
first major release to be renamed to simply "iOS", and the first
major release to drop support for some devices, as well as the first update
that iPod Touch users did not have to pay for.
The iPhone 3G and 2nd generation iPod
Touch lack multitasking capabilities and the ability to set a
home screen wallpaper, while the iPhone
4, iPhone
3GS, 3rd and 4th generation iPod Touch have them.
The iPhone and the 1st generation iPod Touch cannot run iOS 4 and above.
iOS 4.2.1, released November 22, 2010, added iPad compatibility.
It was the last to support iPhone 3G and iPod Touch (2nd generation, MB &
MC models).
iOS 4.0 was released to the public and supported only the iPhone
and iPod touch. iOS 4.0 was announced to have over 1500 new APIs for
developers, supporting the highly anticipated multitasking feature. The final
iOS version for the 2nd generation iPod Touch and iPhone 3G is iOS 4.2.1. iOS
4.2.1 was the first version to bring major feature parity to the iPhone and
iPad. The release of the CDMA iPhone 4 for Verizon Wireless saw a branching of iOS. The 4.2 version sequence
continued for the CDMA iPhone 4 while iOS 4.3 was released for all other
products. iOS 4.3.5 was the final release on iOS 4.
Features
iOS 4 added features such as multitasking, folders,
and home screen wallpapers. Multitasking and home screen wallpapers were not
available on the iPhone 3G and the iPod touch (2nd generation).
iOS 4.1 added a new app called Game
Center, though not available on the iPhone 3G.
iOS 5 is the fifth version of the iOS mobile
operating system designed by Apple
Inc. It had the fewest updates
out of all the major iOS versions. It was preceded by iOS
4 (final version was 4.3.5)
and succeeded by iOS 6, which was released on September 19, 2012.
iOS 5 was previewed on June 6, 2011 during WWDC 2011. At
the same event, Apple previewed Mac
OS X Lion and announced its cloud-based media service, iCloud. For the second time, support for some
devices was dropped, specifically the iPhone
3G and the iPod
Touch (2nd generation). Supported devices on this release
include the iPhone 3GS onwards, the iPod Touch (3rd generation) onwards, and the
original iPad onwards.
On October 4, 2011, Apple held an event at the 4 Infinite Loop building at its headquarters in Cupertino, California. While other items were discussed, the main focus was
the unveiling of the iPhone
4S and its new, exclusive Sirisoftware. The
release date for iOS 5, October 12, was announced at this event.
The iPhone 4S came with iOS 5 pre-installed, but older units required
the update to be installed through iTunes.However, when the update was first released, many users
received error messages upon attempting to download it, and some had warnings
that their devices could not be restored. It was thought that Apple's servers
were simply not able to keep up with the demand, causing as many as half of the
initial requests for the update to fail
Features
iCloud
Apple's cloud-based service, iCloud, first became
available with iOS 5. This new feature allows users to synchronize their music,
pictures, videos, and more across all of their iCloud-enabled devices. Each user is given 5 gigabytes of
storage space for free, but is allowed to sync unlimited amounts of music,
apps, books and photos.
iOS 6 is the sixth major
release of the iOS mobile
operating system designed by Apple
Inc., initially released on September 19, 2012. The
final version of iOS 6 is 6.1.6. It was preceded by iOS 5 (final version was 5.1.1) and was succeeded by iOS 7 on September 18, 2013. New features included a new Maps
application with data developed by Apple, the Passbook application for storing tickets and loyalty cards,
enhancements to Siri and user-definable 'VIP' inboxes for mail from known
recipients.
iOS 6 is the last release of iOS supervised by Scott Forstall,
who led the creation of the operating system from its early development in
2005.
iOS 6 was previewed on June 11, 2012 during Apple Worldwide Developer Conference (WWDC) 2012, with release announced for Fall 2012.
Following the pattern of previous iOS releases, older devices are no longer
supported, specifically the third-generation iPod
Touch and the first-generation
iPad. Supported devices on this release include the iPhone 3GS or later, the fourth-generation iPod Touch and later, the iPad 2 or later, and iPad
Mini.
On September 12, 2012 at San Francisco's Yerba Buena Center for
the Arts, among other items unveiled, Apple announced three iOS-related items;
the release of the next generation of iPhone, called iPhone 5, the
fifth-generation iPod Touch, and the expected final release of iOS 6.0.[2] The September 19 release date of iOS 6 was
announced at this event
While the iPhone 5 came installed with iOS 6 starting September 21, other
units will require an over-the-air
update or an install through iTunes. An update
to iTunes version 10.7, which was released on September 12, 2012 is necessary
to install the iOS 6 update on a device.
The release of iOS 6 is Apple’s fastest beta-to-product
development for its mobile OS.
Features
Unlike previous iOS versions, two notable apps that iOS 6
removed by default are Google Maps and YouTube. However, they can be downloaded for free in the iTunes
App Store.
The built-in Maps app uses Apple's new vector-based engine that eliminates
the lag present while downloading bitmaps from Google's servers,
making for smoother zooming. New to Maps is turn-by-turn
navigation spoken directions in certain countries, 3D views in some
major cities and real-time traffic. Turn-by-turn
navigation is only available for iPhone
4S or later and iPad
2 or later with cellular capability, while 3D views are
only available for iPhone 4S or later, fifth-generation iPod Touch, and iPad 2 and later.
Another change includes the inability to download Podcasts
through the regular iTunes application. Instead, users are prompted to download
the official Podcasts App in order to continue.
iOS 6 brings the retrieval of documents such as boarding passes,
admission tickets, coupons and loyalty
cards through its new Passbook app. An
iOS device with Passbook can be scanned under a reader to process a mobile
payment at participating locations. The app has context-aware
features such as notifications for relevant coupons when in the immediate
vicinity of a given store.
Apple’s Siri intelligent
personal assistant was improved to include the ability to make restaurant
reservations, launch apps, dictate Facebook or Twitter updates, retrieve movie
reviews and detailed sports statistics. Siri,
which previously was only supported on iPhone
4S, is also now supported on iPhone 5, fifth-generation iPod Touch, third- through fourth-generatio
iPad and iPad
Mini.
Facebook comes integrated through Apple’s native apps with iOS 6.
Facebook features can be directly accessed from within native apps such as
Calendar which can sync Facebook events, or use Facebook’s like button from within theApple App Store and Game
Center.
New privacy settings are available to the user. In addition to
location services, the following have been added in iOS 6: photos (already
partially restricted in iOS 5), contacts (address book), calendars, reminders, Bluetooth sharing, Twitter, Facebook, and Sina Weibo. iOS 6 also comes with a "Limit ad tracking"
user control in the general settings menu to allow users the option to prevent targeted advertising. Apple's Advertising Identifier replaces the company’s
existing UDID standard.Advertising networks not yet using Apple's Advertising Identifier device identifier standard would not be affected although Apple will
require the standard in the future
Source:
No comments:
Post a Comment